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Table of ContentsReactivity of zinc(Ⅱ) 5-oxonia-protoporphyrin-Ⅸ : synthesis of the first 5-oxonia-15-phlorin An efficient synthesis of 5-phosphorylated 1,3,2-diazaphosphinines from β-functionalized enamines derived from phosphine oxides and phosphonates The Diels-Alder reaction of phenylsulfonylacetylene and furan derivatives : normal vs. tandem 'pincer' reactions H-D exchange of psilocin and its analogs Diene-transmissive hetero Diels-Alder reaction of 1,5-diphenyl-1,4-pentadien-3-one One pot reaction of unstable N-acyl quaternary salt of thiazoles or imidazoles with silyl enol ethers formed in situ Novel method for the synthesis of chiral 4-aryl-γ-butyrolactones via cascade asymmetric epoxidation-ring expansion-Baeyer-Villiger reaction of cyclopropylidene derivatives Enantioselective synthesis of β-amino acid via asymmetric bromolactamization Regiocontrolled carbonylsulfanylations at ortho-position of phenols and at α-position of ketones using chlorocarbonylsulfenyl chloride Synthesis of triazolo[4,5-f]quinolines : an unusual case of displacement of nitro group in the reaction of 8-acetylamino-6-chloro-5-nitroquinoline with hydrazine and methylhydrazine First synthesis and crystal structures of chiral 1,3-dienylborates Formation of bicyclic β-lactams from dichloro-1,4-oxathiane-3-carboxanilides : nucleophilic substitution of nitrogen on anomeric carbon β-glucosyltransferase in cell cultures of Verbesina caracasana A radical route to morphans : synthesis and spectroscopic data of the 2-azabicyclo-[3.3.1]nonane Cyclization of tautomeric 1,5-dinitrile systems with hydrogen halides : a definitive mechanistic rationalization? Peroxidase from cell cultures of Cassia didymobotrya : a review and comparison with horseradish peroxidase Synthesis of N-(arylprop-2-en-1-yl)benzotriazoles by the Heck reaction Studies on a total synthesis of plakotenin : synthesis of optically active trans-hydrindanes by diastereoselective asymmetric intramolecular Diels-Alder reaction Reaction of β-cyanomethylene-β-enamino diketones and -keto esters with hydrazines : synthesis of pyrazole and pyridine derivatives 4-acyl-5-methyl-2-phenylpyrazolones : NMR and X-ray structure investigations Substituted benzimidazoles part 2 : synthesis and properties of 2-aryl-1-hydroxy-5-(2-thenoyl)benzimidazole 3-oxides A new divergent asymmetric synthesis of (+)- and (-)-ethosuximides and their anti-convulsant activities The reaction of 5-chloro derivatives of 3-pyridinol and 3-methoxypyridine with various amines under aryne-forming conditions Ethyl 2-(2-acetyl-2-ethoxycarbonyl-1-ethenyl)amino-3-dimethylaminopropenoate in the synthesis of heterocyclic systems : the synthesis of substituted 3-aminoazolo- and -azinopyrimidinones, pyridopyridinones and pyranones Synthesis and biological activity of 1-cyclopropyl-1,4-dihydro-4-oxo-3-pyridinecarboxylic acid Preparation of 4-iodo-β-carboline-3-carboxamide via ortho-metalation and its use in palladium-catalyzed carbon-carbon bond forming reactions with unsaturated substrates Polycylic N-heterocyclic compounds 53 : one step synthesis of imidazo[1,5-a]pyridine derivatives by Vilsmeier reaction using N,N-dimethylarylamides 10-hydroxy-7-arylindeno[1,2-b]-1,2,5-oxadiazolo[3,4-d]pyridines and 7-aryl-10-oxoindeno[1,2-b]-1,2,5-oxadiazolo[3,4-d]pyridines : synthesis, spectra, and polymorphism The isolation and structure of pumiliotoxin 341A : a novel cyclic ether from the frog Epipedobates tricolor An efficient route to formyldeuteroporphyrins and their wittig reaction Rearrangement reaction of tetrahydrofurans and tetrahydropyrans having a C1'-mesyloxy group on the C2-side chain with zinc acetate Regioselectivity of 1,3-dipolar cycloaddition of 3-oxidopyridinium betaines to olefins and stereoselective synthesis of 6-alkyloxy-5-oxa-9-azatricyclo[5.2.1.04,8]decan-2-one derivatives Preparation of 2-alkylselenobenzothiazoles by the reaction of alcohols with 2-(2-oxoethylseleno)benzothiazoles in the presence of tertiary phosphines A concise synthesis of (+)-α-allokainic acid via site- and diastereoselective intramolecular C-H insertion process Synthesis of solamin Dual p-coumaroyl CoA biosynthesis in Morus alba cell cultures Diastereo- and enantioselective synthesis of Δ²-1,2,4-oxadiazolines by 1,3-dipolar cycloaddition of nitrile oxides with chiral hydrazones The efficient synthesis of 1,2-dioxetanes from indene and 1,2-dihydronaphthalene Chiral auxiliary approach to the asymmetric Pictet-Spengler reaction of tryptamines Peptide coupling reactions with phosphono-phosphino substituted γ-thiapyrones : first step to unusual peptides Synthesis of new melatoninergic ligands including azaindole moiety A convenient approach to the synthesis of the imidazo[5,1-b]oxazole ring system Synthesis of a novel multi-receptor containing hydrogen bonding sites and ion binding sites Simple syntheses of thieno[4,3,2-d,e]isoquinoline-3,5-diones and their homologues Synthetic studies of forskolin : a formal synthesis via a Nicolaou's advanced intermediate Towards a unitary description of the photochemical isomerization reactions in pentaatomic aromatic heterocycles : the case of furan, thiophene, pyrrole, isoxazole, imidazole, and pyrazole derivatives Diels-Alder reactions of benzo[b]furan-4,5-diones and benzo[b]furan-4,7-diones 1-hydroxyindoles 1,3-dipolar cycloadditions of five and six membered cyclic nitrones to α,β-unsaturated acid derivatives Reactions of 1,4-dichlorobut-2-yne derivatives leading to heterocycles
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Table of ContentsFiftieth volume of heterocycles : preface Preface Preface for the special 50th volume of heterocycles Preface : is heterocyclic chemistry boring? Editor's remark An enantiocontrolled total synthesis of (-)-xanthorrhizol An efficient synthesis of a metabolite of vasopressin V2 receptor antagonist, OPC-31260, by metalloporphyrin-catalyzed demethylation Stereoselective synthesis of methylene phosphonate analogues of thymidine 3'-phosphate and 2'-deoxyuridine 3'-phosphate via intramolecular N-glycosylation reaction of thioglycosides Synthesis of meso- and dl-2,2'-methylenebis[tetrahydro-2-furanmethanol] : potential building blocks for the construction of ionophores housing spirotetrahydrofuranyl motifs A synthesis of (±)-ipalbidine using sulfur-controlled 6-exo selective radical cyclization of α-phenylthio amide Asymmetric synthesis of rhopaloic acid a analogues and their biological properties Direct and simple conversion of codeine to thebainone-A and dihydrothebainone Synthesis and chemiluminescence of 10-hydroxy- and 10-aminopyridazino[4,5-b]quinoline-1,4(2H,3H)-diones Xanthone receptors for carboxylic acids and carboxylates Asymmetric Diels-Alder reaction of optically active 3-(3,3,3-trifluoropropenylsulfonyl)oxazolidine : synthesis of (8R)-8-trifluoromethyl-2-oxa-6-thia-5-azatricyclo[5.2.2.0¹'⁵]undecane-6,6-dioxide Synthesis of bicyclic derivatives of 5a-carba-sugars : 6-hydroxyl group conformationally restricted 5a-carba-D-mannopyranose derivatives Electrochemical reduction reactions of 1,3-diazadihydroazulanone derivatives : 1,3- and 1,5-hydrogen migration reactions in electrochemical reductions Novel synthesis of diazetidine-2,4-dione by ring expansion of diaziridinone Synthesis of functionalized pyrrolidines from mesoionic 4-trifluoroacetyl-1,3-oxazolium-5-olates and aminomalonate First total synthesis of the pandanus alkaloids, Pandamarilactam-3y and -3x Electrocatalytic oxidation of benzyl alcohol and 1-phenethyl alcohol by a decahydroquinolinyl-N-oxyl radical Stereospecificity in the carbopalladations of chiral allenes followed by intramolecular nucleophilic substitution reactions (S)-proline-derived chiral ligands bearing organosulfur or -selenenyl groups as coordinating elements in palladium-catalyzed asymmetric allylic alkylations 4'-hydroxyphenylcarbamates of (3aS)-eseroline and (3aS)-N(1)-noreseroline : potential metabolites of the alzheimer's anticholinesterase drug phenserine Synthesis with bis(o-mercapto)phenyl sulfide : an easy access to sulfurcontaining 16-membered heterocycles A new stereoselective synthetic strategy for β-hydroxy-α-amino acids of vancomycin A novel method for introduction of carbon substituents into pteridine Formation of 5-methylene-1,3-dioxepanes by the reaction of 2,2,2-triphenyl-1,2λ⁵-oxaphospholanes with paraformaldehyde Reactions of 3-ethyl- and 3-phenyl-1-azabicyclo[1.1.0]butanes with tosyl chloride and tosyl azide Reactions of alkyl methyl ketoximes with tetrasulfur tetranitride antimony pentachloride complex (S₄N₄SbCl₅) : a regioselective formation of 3-alkyl-4-methyl-1,2,5-thiadiazoles and their mechanism of formation Photochemical transformation of trithiobarbiturate into thiohydantoin and imidazolinothiophene derivatives Synthesis of vinca alkaloids and related compounds part ⅩⅭⅢ : skeletal rearrangement of cyclovinblastine derivatives : formation of a novel bisindole system Synthesis and reaction of S-trimethylsilylmethyl carbonimidodithioate derivatives : synthetic equivalent of thiocarbonyl ylide Addition of 1-Boc-2-tert-butyldimethylsilyloxypyrrole to N-methyleneamine equivalents : synthesis of 1-Boc-5-aminomethyl-2,5-dihydropyrrol-2-ones and 1-Boc-2-oxo-1,7,9-triazaspiro[4,5]dec-3-enes Synthesis of β-substituted and α,β-disubstituted δ-carbolines using a halogen-dance reaction Packing modes in eight 3-ethoxycarbonylpyrazole derivatives : influence of the substituents on the crystal structure and annular tautomerism Substituent effects on the rate of acid-catalysed epimerization of indolo[2,3-a]quinolizidines Oxidation and rearrangement of 5-substituted 5-ethoxycarbonyl[1,2,4]triazolidine-3-thiones An efficient preparative route to fused imidazo[1,2-a]pyrazin-4-one derivatives A new flavonol from Murraya paniculata var. omphalocarpa : ¹³C-NMR as a useful tool for structure elucidation of polyoxyflavones Photoreaction of arenecarbothioamides with furan : facile synthesis of pentagonal di- and tri-heterocyclic compounds A study of biflavanones from the stems of Garcinia kola (Guttiferae) 1,3-oxathiane ring formation through intramolecular Pummerer reaction of alkyl ortho-hydroxymethylphenyl sulfoxides Synthesis of 6-(bromoacetyl)amino-2,3-dimorpholinoquinoxaline and application to a new fluorescence derivatization reagent of fatty acids for the high-performance liquid chromatographic analysis Synthesis of new podand possessing three tropolonoids connected by two oligoethylene glycol chains 4-dimethylaminomethylene-2-pyrazinyl-5(4H)-oxazolone as a synthon for the synthesis of various pyrazoles and fused pyrimidines A new route for preparation of 5-deoxy-5-hydroxyphosphinyl-D-gluco- and L-idopyranose derivatives New stereoselective synthesis of (±)-trans-2-butyl-5-heptyl-1-methylpyrrolidine, ant venom alkaloid, by aminyl radical cyclization Coupling of consecutive pyridine ring units for oligopyridine synthesis Isoquinolinium N-arylimides and trans-cyclooctenes Expansion of ring B in the gibberellins : entry to the rabdosia family of kaurenoids A simple synthetic method for fluorine-containing 4H-pyrano[3,2-d]isoxazoles and 4-cyanoethylisoxazoles from 5-trifluoroacetyl-2-methoxy-3,4-dihydro-2H-pyran with hydroxylamine hydrochloride Diversity of rearrangement of 3-substituted 5-carbamoyl-1-phenyluracil derivatives 1,4-addition of organolithium compounds to 6-ethoxy-3-phenyl-6H-1,2-oxazine First synthesis of gem-difluorothiiranes from cycloaliphatic thioketones and difluorocarbene Absolute stereostructures of 3S-phyllodulcin, 3R- and 3S-phyllodulcin glycosides, and 3R- and 3S-thunberginol H glycosides from the leaves of hydrangea Macrophylla seringe var. thunbergii Makino Thiazole as leaving group : thermal elimination from thiazolylketoses A facile construction of the Woodward ketone by a zinc(Ⅱ) chloride-catalyzed Stille coupling reaction Enantio- and diastereoselective synthesis of (+)-asperlin by the Sharpless asymmetric kinetic resolution of an unsymmetrical divinylcarbinol Synthesis of enantiopure (S)-thieno[f]indolizidines Synthesis of certain quinolin-2(1H)-one α-methylene-γ-butyrolactones as potential antiplatelet agents Studies on isocyanides and related compounds : a facile synthesis of 1-substituted 3-cyano-2-methoxy-3-phenylpyrroles Synthesis of coumarin-3-o-acylisoureas by different carbodiimides Practical synthesis of quinoline nucleus of NK-104 A new manzamine congener from marine sponge Amphimedon sp. Manganese(Ⅲ) acetate initiated oxidative free radical reaction between 2-aryloxy-1,4-naphthoquinones and dialkyl malonates Bufobutanoic acid and bufopyramide, two new indole alkaloids from the chinese traditional drug Ch'an Su Heteroatom radical addition-cyclization and its synthetic application Progress in total synthesis of marine alkaloids, aaptamines Chemical realization of the biogenetic pathways proposed for the fused-polycyclic ethers of marine origins Limonoids from Melia toosendan (Meliaceae) and their antifeedant activity Synthesis and reactivity of pyronoids in aqueous medium Recent advances on antitumor-active benzo[c]phenanthridine alkaloids
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Table of ContentsBibliographical data Preface Bernhard Witkop : A chemist in a biomedical institute From the "Ordeal Bean" (Physostigma venenosum) to the ordeal of Alzheimer's disease : some of the legacy of Percy Lavon Julian (1899-1975) MCR IX : a new and easy way for the preparation of piperazine-2-keto-3-carboxamides An enantio- and diastereoselective synthesis of (-)-isoretronecanol and (+)-trachelanthamidine from a meso precursor Studies on the stereochemistry of theonezolides A-C : elucidation of the relative configurations of 1,3-diol moieties of the C-4~C-17 fragment A novel synthesis of thebaine from codeine Isolation, partial synthesis and stereochemical study of 10-hydroxystrictosamide, a constituent of Nauclea orientalis in Thailand Synthesis and cytotoxicity of various structural types of novel cyclopropapyrroloindole(CPI) derivatives Acid-catalyzed photorearrangement of 1,3-dimethylcyclooctapyrimidine-2,4-dione into 10,12-diazatricyclo[6.4.0.0¹'⁵]dodeca-3,7-diene-9,11-diones Synthesis of unnatural enantiomer of nectrisine and its biological activity Allylation of N-acyl quaternary salts of azaaromatics with allyltrimethylsilane in the presence of triflate ion Intramolecular [2+2] photocycloaddition of fumaramic acid ester derivatives : syntheses of 2-(2,3-dicarboxycyclobutyl)glycines Cycloaddition reactions of oxaquadricyclane, oxanorbornadiene, and related compounds with cyclooctyne Reactivity of Rieke manganese : synthesis of pyrrolidine and piperidine derivatives On the stereoselective construction of the B and A rings of halichondrin B : a PM3 study Absolute stereostructures of spinacosides C and D with a novel acetal type substituent from Spinacia oleracea (Spinach) and Basella rubra (Indian spinach) Organic reactions in water : indium mediated synthesis of α-alkylidene-β-lactams Antimalarial activities in vitro of homoprotoberberine derivatives : design of novel antimalarials and structure-activity relationship analysis Construction of 3,4-disubstituted tetrahydrofuran ring by radical cyclizaition : a model study for kainoid synthesis Synthesis and evaluation of enantiomerically pure azinomycin-lexitropsin hybrid molecules with DNA-cleaving activity Cycloaddition of lithium ynolate to imines : synthesis of 3,4-disubstituted β-lactams Perhydroisoquinoline synthesis : C(20)-substituted analogs of yohimbine-type alkaloids Photochemical rearrangements of 1-acetyl-1,2-dihydroquinoline-2-carbonitriles to the 3,1-benzoxazines and cycloprop[b]indoles New syntheses of murrayafoline-A and murrayaquinone-A via fischer indolization of 2-sulfonyloxyphenylhydrazone (Fischer indolization and its related compounds part 29) The synthesis of ethyl 2-(2-cyano-2-ethoxycarbonylethenyl)amino-3-dimethylaminopropenoate : the synthesis of substituted aminoazolo-, aminoazinopyrimidinones and 2H-1-benzopyran-2-ones Novel heterocycles : a benzodithiolane S-oxide and a benzothiadiazinane s-oxide Samarium iodide promoted coupling of N-substituted azetidin-3-ones : a novel route to spiroannulated heterocyclic oxiranes The structure of aminoazoles and its relationship with aromaticity : crystal and molecular structure of two polymorphic forms of 4-aminopyrazole Stereoselective synthesis of antifungal sulfoximines, novel triazoles I Stereoselective synthesis of antifungal sulfoximines, novel triazoles II Concise synthesis of nitidine by palladium-assisted biaryl coupling reaction Synthesis of acetylcholinesterase inhibitors on the basis of 9-isothiocyanato-1,2,3,4-tetrahydroacridine : 2-[(1,2,3,4-tetrahydroacridin-9-yl)imino]-3-substituted 1,3-thiazolidin-4-ones Organozinc derivatives of diazines, metalation of diazines XXIII Ring enlargement of eight- and nine-membered cyclic sulfonamide derivatives in reactions with 3-amino-2H-azirines New silane reduction of aromatic ketones mediated by titanium tetrachloride : a synthesis of γ- and δ-aryl substituted amino acids Synthesis of 6-epoxygeranylgeraniol and its application to the construction of A/B acyclic pimarane type diterpene Studies on novel and chiral 1,4-dihydropyridines VI : preparation of a polymer-supported 1,4-dihydropyridine having a chiral sulfinyl group and its application to biomimetic reduction Clavulazine, a new marine pyrazine congener from the Okinawan soft coral Clavularia viridis Conformational preference of two toad poison bufadienolides, bufarenogin and ψ-bufarenogin Synthesis of 2,2'-bipyridines bearing amino or carboxyl group at the side chain and physical properties of their ruthenium(II) complexes A facile and convenient synthetic method for fluorine-containing naphtho[1,2-e][1,4]diazepines, naphtho[1,2-e][1,4]dithiepins and naphtho[1,2-e][1,4]dioxepins Intramolecular 1,5-hydrogen atom transfer radical reaction of pyrrolidine derivatives Chemical conversion of labdane-type diterpenoid isolated from the liverwort Porella perrottetiana into (-)-ambrox Alkaloids of some Mongolian ranunculaceae species : detailed ¹H- and ¹³C-NMR studies of denudatine and lepenine The highly stereocontrolled radical-based addition of a 2,2-dichloroacyl function to a 2-oxazolone heterocycle : a new approach to MeBmt, the key component of cyclosporin Noelaquinone, a new hexacyclic triazine quinone from an Indonesian Xestospongia sp. Regioselective metalation of γ-carbolines The structure and antimalarial activity of some cis-fused bicyclic 1,2,4-trioxane derivatives Mercurophilic property of 23-dicyanomethylene-5,8,11,14,17-pentaoxa-2,20-dithiabicyclo[19.4.1]hexacosa-1(26),21,24-triene Iron chelators of the pyridoxal-based class part 7 : the synthesis and single crystal structure of 1-(N-ethoxy-carbonylmethylpyridoxyledenium)-2-(pyrimidyl)hydrazine salts Synthesis of 2-aroylquinoxalines, 1-aroylphthalazines, and 4-aroylcinnolines : an aroylation method using arenecarbaldehydes catalyzed by azolium salt Site specificity in 1,3-dipolar cycloadditions to a polycyclic polyene induced by complexation with tricarbonyliron The isolation and structure of the novel cis-fused indolizidine 249H from frog skin : cis- vs. trans-fused indolizidines distinguished by NMR Syntheses and biological evaluation of (±)-3a-phenyl congeners of physostigmine and phenserine Preparation of (±)-hirsutine and (±)-3-isocorynantheidine A five-step synthesis of psilocin from indole-3-carbaldehyde A convenient preparation of α-keto esters by the grignard reaction on N-acylpyrazoles A new cleavable carbene-generating reagent with 3-phenyl-3-trifluoromethyldiazirine photophore Difference in guest binding capability between cyclodextrins having an acetylamino moiety at primary- and secondary-hydroxyl sides : the effect of ring distortion Reduction of uracil derivatives with an NADH model, 1-benzyl-1,4-dihydronicotinamide Acetylcholinesterase inhibiting triterpenoidal alkaloids from Buxus hyrcana Synthesis and biological evaluation of 14-alkoxymorphinans 16 : 14-O-alkyl derivatives of the μ-opioid receptor antagonist cyprodime Pictet-spengler reactions of Nb-hydroxytryptamines and their application to the synthesis of eudistomins Survey of oxygenated 2,11-cyclized cembranoids of marine origin Synthesis of 1,3,4-thiadiazines and 1,3,4-oxadiazines Stable heterocyclic five-membered azomethine imines : azolium N-imides, triazolidinium and pyrazolidinium ylides
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Table of ContentsSynthesis of tetrapyrrole nitrogen mustards with potential anti-tumor activities Epoxidation of four possible conformers of humulene 9,10-epoxide : first isolation of 2R*, 3R*, 6S*, 7S*, 9S*, 10S*-humulene 2,3;6,7;9,10-triepoxide Regioselective ring-opening of 2,3-epoxy alcohols with tetramethylammonium triacetoxyborohydride Regiospecific demethylation-sulfonation of 2',3'-dimethoxyflavones [4π+2σ]-type cycloaddition reactions of naphtho[b]cyclopropene with C,N-diphenylnitrones to form dihydronaphthoxazines The gracilines : a novel subgroup of the amaryllidaceae alkaloids Synthesis of 2-substituted 3-alkenyl-indoles by the palladium-catalyzed cyclization followed by alkenylation (Heck reaction) Five new withanolides from Withania coagulans Stereocontrolled addition of grignard reagents to chiral 1,3-oxazolidines having N-methoxybenzyl groups : effect of N-substituent in diastereoselectivity The X-ray molecular structure of (Z)-1-(4,5-diphenyl-1,2,3-triazol-2-yl)-1,2-diphenylethylene at 200 K A novel tetracyclic system containing the 1,2,6-thiadiazine ring : synthesis, structural assignment and tautomeric studies On the reaction of dipivaloylketene dimer with oximes and hydrazines : synthesis of tetraoxaadamantanes Nitrogen bridgehead compounds part 90 : an efficient versatile synthesis of 1-methyl-2-substituted 1,2,3,4-tetrahydro-6H-pyrazino[2,1-b]quinazoline-3,6-diones Diels-Alder cycloaddition of methacrolein N,N-dimethylhydrazone to 1,4-naphthoquinone derivatives Synthesis and transformations of 2-amino-1-(4,5-dihydro-1H-imidazol-2-yl)benzimidazoles : a route to 2,3-dihydrobenzo[4,5]imidazo[1,2-c]imidazo[1,2-a][1,3,5]triazine ring system Total synthesis of topsentin, antiviral and antitumor bis(indolyl)imidazole Reaction of (vinylimino)phosphoranes with electron-deficient acetylenes : synthesis and reactivity of 1,2λ5-azaphosphinines Preparation of both (D)- and (L)-serinol derivatives from N-[(S)-α-methylbenzyl]-aziridine-2(S)-methanol Pyrimidine derivatives starting from dicyanoketene ethylene acetal Studies on the metabolites of Penicillium vulpinum Reactions of 2-tert-butyl-3-phenyl-oxaziridine with alkyl isothiocyanates and its application to glucosyl-aminoheterocycle synthesis Use of enzymes in preparation of enantiopure 1,4-dihydropyridines
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Table of ContentsStille and Suzuki cross coupling reactions of o-nitrophenyl triflates : a versatile route to a variety of heterocycles Facile formation of cyclic polysulfides by a new generation method for diatomic sulfur Stereoselective synthesis of hexahydro-1,4-thiazepin-3-one and dihydro-1,4-thiazin-3-one derivatives Versatile synthesis of 2-aryloxyalkyl-oxirane-2-carboxylate : syntheses of ethyl 2-[6-(3-alkoxyphenoxy)hexyl]oxirane-2-carboxylates Synthesis of 7-methyl derivatives of 5,10-dideaza-5,6,7,8-tetrahydrofolic acid (DDATHF), 5,10-dideaza-5,6,7,8-tetrahydrohomofolic acid (HDDATHF), and LY254155 Synthesis of novel 5,6,7,8-tetrahydro-4H-thieno[2,3-b][1,4]diazepine derivatives Debenzotriazolylation of α-benzotriazolyl ketones with samarium diiodide Synthesis of imidazonaphthyridines and -quinolines Novel complex N-heterocycles via intramolecular 1,5-electrocyclizations : 1,2,3,4,4a,5,5a,10-octahydropyrido-[4",3":2',3']cyclobuta[1',2':4,5]pyrrolo[2,3-b]pyridines Reaction of 1-benzylindole-2,3-dicarboxylic anhydride with 3-bromo-4-lithiopyridine : formal synthesis of ellipticine General method for synthesis of erythrinan and homoerythrinan alkaloids (2) : application of Pummerer-Type reaction to the synthesis of homoerythrinan ring system Synthesis of pyridazino[4,5-b]carbazoles as potential antitumor agents Asymmetric synthesis of so-called "dehassiline" isomer, (S)-1-(2'-hydroxy-5'-methoxybenzyl)-7-hydroxy-6-methoxy-2-methyl-1,2,3,4-tetrahydroisoquinoline Short-step synthesis of 1,3-disubstituted naphtho[2,3-c]furan-4,9-dione and naphtho[2,3-b]furan-4,9-dione by the Friedel-Crafts reaction A degradation study of vermisporin and determination of its absolute configuration One-pot synthesis of 2-substituted 3-trifluoromethyl-3-hydroxy-1,2-benzisothiazole 1,1-dioxides from N-substituted benzenesulfonamides Novel synthesis of polyfunctionalized 1,4,4a,9a-tetrahydro-1-aza-9-oxafluorenes by unexpected cycloaddition of 4-(4-methoxyphenyl)-1,4-dihydropyridines and p-benzoquinone Reaction of disubstituted cyanamides with formamides under high pressure Reduction of 9-substituted acridines with nickel-aluminum alloy Improved synthesis of Watasenia preluciferin Five Nx-methyladenines : their chemistry, physicochemical properties, and biological activities
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Table of ContentsProduct structure as a function of reaction conditions in the reaction of formaldehyde with an alpha-mercapto amide Model studies toward the synthesis of Nα-acetyl-Nβ-methylphlegmarine : addition of cyclohexylmethyl organometallics to 1-acylpyridinium salts Total synthesis of macrocyclic antibiotic, micrococcin P₁ Stereocontrolled synthesis of tetrahydrofurans and tetrahydropyrans by cyclisation of hydroxyselenides A novel synthesis of 1,3-benzodiazepin-2-ones using intramolecular heck reaction Synthesis and reactions of chiral cyclic nitrones derived from D-ribose Conambine, a new norditerpenoid alkaloid from Consolida ambigua seeds Synthesis and stability of 5-, 7- and 8-substituted benzo-1,2,3,5-tetrazepin-4-ones Synthesis of furanonaphthazarin derivatives The direct synthesis of isoflavans via α-alkylation of phenylacetates Acylation of guanylhydrazones derived from cyclic ketones : synthesis of 3-acylamino-1-cycloalkenyl-5-methyl-1H-1,2,4-triazoles Transformation of oxomethanobenzocyclooctenecarboxylic acids to pyrrolidinone-fused penta-, hexa- and heptacyclic hetero compounds Preparation and absorption spectral properties of the nitrogen analogs of a Pechmann dye and its isomeric pyrano[4,3-c]pyran-1,5-dione Synthesis and antitumoral evaluation of 12-substituted 6,7-dihydrobenzo[4,5]-cyclohept[1,2-b]indole derivatives Synthesis, ¹H and ¹³C NMR spectra, and configurational assigment of furfurylideneimidazolinones Amine N-oxides derived from alkaloids as chiral promoters in enantioselective Pauson-Khand reactions Oxidation of 1,3-dimethylthymine and 1,3-dimethyluracil with Oxone in the solid to solid state Axinellamines A and B, new pyrrole alkaloids of the marine sponge Axinella sp. Caesalpinin B, A rearranged cassane furanoditerpene of Caesalpinia bonduc Kinetic resolution of aryl glycidyl ethers : a practical synthesis of optically pure β-blocker : S-metoprolol Synthesis, complexation and emission behavior of N,N',N'',N'''-tetrakis-(1-naphthylmethyl)-1,4,8,11-tetraazacyclotetradecane Biomimetic formation and interconversion in the heteroyohimbine series
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Table of ContentsFacile in situ preparation of o-azaxylylene from N,O-diethoxycarbonyl-o-aminobenzyl alcohol Merckonine, a new aconitine-type norditerpenoid alkaloid with a -N=C-19H functionality Regioselective nucleophilic substitution of halogen derivatives of 1-substituted 4-oxo-1,4-dihydroquinoline-3-carboxylic acids Syntheses of 1-hydroxytryptamines and serotonins having fattyacyl or (E)-3-phenylpropenoyl derivatives as an Nb-substituent, and a novel homologation on the 3-substituent of the 1-hydroxytryptamines upon treatment with diazomethane Synthesis of 2-alkylidene-3,3-dialkyl-1,4-dithianes and their oxathiane analogues by 1,2-sulphur migration Synthesis of 5-substituted indole derivatives, I : an improved method for the synthesis of sumatriptan Electrochemistry of 7-carboethoxycycloheptatriene and its aza-analogues : ring contruction of azepine derivatives to anilinederivatives by oxidation and N-N bond rupture of diazepine derivatives to 1-amino-4-cyano-1,3-butadiene derivatives by reduction Synthesis of thieno[2,3-d]pyrimidines and aminopyrimidines from 2-alkoxy-5-cyano-4-thioxopyrimidine intermediates Electron impact induced fragmentation of 4-aryl-4,6,7,8-tetrahydro-1H,3H-quinazoline-2,5-diones A novel synthesis of 1,6-diamino-2-pyridones and [1,2,4]triazolo-[1,5-a]pyridine derivatives Preparative scale conversion of D-xylose into hydrophilically functionalized pyrazoles Synthesis of pluriaminated pyridines Alternative synthesis of (-)-malyngolide utilizing (-)-quinic acid Synthesis of pyrazolo[4,3-c]quinoline-5-oxide by reductive cyclization of 4-acetyl-5-(2-nitrophenyl)pyrazole : revision of the reported structures Pyrrolo[2,3-d][1,2,3]triazoles as potential antineoplastic agents New efficient synthesis of ethyl 2,3-cycloalkenopyridine-4-carboxylate Hydrolysis of 4-amino-3-qunolinesulfonamides Recent advances in selective syntheses of 6- and 7-substituted pteridines Acid-catalysed C-3 epimerization of reserpine and other indolo-[2,3-a]quinolizidines
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Table of ContentsSynthesis and reactions of a novel furo[3,4-d]thiazole Synthesis and properties of porphyrin-linked indolizine Heteroaromatic tripoles : syntheses of aminopyrimidine-bispyridinium salts and bispyridiniopyrimidinaminides Corchorusosides A, B, C, D, and E, new cardiotonic oligoglycosides from the seed of Corchorus olitorius L. (Moroheiya) Rhodium(Ⅱ)-catalyzed cycloaddition of cyclic diazodicarbonyl compounds with nitriles : synthesis of tetrahydrobenzoxazoles, tetrahydrobenzofurans, and tetrahydrobenzodioxoles A new indole alkaloid from Sarcocephalus latifolius Regioselective synthesis and spectral characterization of ethyl (Z)- and (E)-2-alkylidene-4-oxothiazolidine-5-acetate derivatives : solvent effects on the Z-E isomerization Cycloadditions of mesitonitrile oxide with hydroxy- and methoxy-substituted stilbenes : a directing hydrogen bonding model Regioselective synthesis of several heterocyclic fused azepines using diisobutylaluminum hydride 1-arylamino-1H-imidazoles by "oxidative reduction" : conversion of 1-arylamino-2,3-dihydro-1H-imidazole-2-thiones Synthesis of bis(N-methylpyrrole oligopeptide-linked hydroxamic acids) and effective DNA cleavage by their vanadyl complexes Establishment of efficient hydroxylation at angular position of 4a-aryl-trans-decahydroisoquinolines An approach to pyrimidine N-oxides : carboxamide oximes as precursors Addition-cyclization of 2-hydroxy-2,3-dihydroindol-3-ones with acetylenecarboxylates : preparation of furo[2,3-b]indoles A new regioselective synthesis of isopavine and pavine alkaloids via double cyclization of N-(1,2-diarylethyl)-N-(2-phenylsulfinylethyl)formamide A mild and efficient dehydrogenation method for 3-carboxy-1,2,3,4-tetrahydro-β-carbolines Two new bicoumarins from a Citrus plant Structures of two new cyclolanostanol xylosides, cimiacerosides A and B The regioselective acylation reactions of imidazopyridines High pressure in enzyme catalyzed organic reactions
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Table of ContentsSynthesis and antibacterial activity of new, non-natural 1β-methylcarbapenem bearing a σ-symmetric bicyclopyrazoliumthio group as the pendant moiety Synthesis, valence isomerization, and chemical properties of 13-azaazuleno-[1,2-g]bicyclo[4.3.1]deca-5b,6,8,10-tetraene A novel property of reduced benzodipteridine toward molecular oxygen First construction of benzotellurazepine ring system, 4-methoxy-1,5-benzotellurazepines Stereochemical change in the lewis acid-promoted reaction of 2-siloxypyrrole derived from (L)-glutamic acid : synthesis of a lactacystin analogue Synthesis of 2,3-disubstituted 4-oxoquinolines and 3-substituted fused 4-oxoquinolines Chloride-assisted nitrolysis of cyclic tertiary amines A simple preparation of some 4-methyl-2H-pyran-2-ones An efficient and stereoselective conversion of lactones to substituted cyclic ethers Rearrangement of an N-aryl-2-vinyltetrahydro-4-oxoquinoline to an acridine derivative A convenient synthesis of 1,2,3-triazoles using dichloroacetaldehyde Medicinal foodstuffs XIII : saponin constituents with adjuvant activity from hyacinth bean, the seeds of Dolichos lablab L.(2) : structures of lablabosides D, E, and F Pyrylium salts of γ-thiapyrones : a simple step to phosphono-phosphino substituted pyridines and pyridinium salts Dimerization of 1-benzenesulfonyl-3-cyanomethylindole : synthesis of indole[2,3-a]carbazoles Synthesis of 1,3-dialkyl- and 1,3-diphenyl-5-cyano-2-thiouracil derivatives Electrochemical synthesis of 2,1-benzisoxazoles by controlled potential cathodic electrolysis Reaction of proflavine derivatives with formaldehyde : access to mono- and bis-(3,4-dihydro[1,3]oxazino)acridines of pharmacological interest Reinvestigation of reaction of cis-aziridinyl ketone semicarbazones and tosylhydrazones with diethyl ether-boron trifluoride(1/1) A facile and convenient synthesis of 9-methyl-3-(1H-tetrazol-5-yl)-4H-pyrido[1,2-a]pyrimidin-4-one potassium A convenient one-pot synthesis of 6-trifluoromethylpyridines
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Table of ContentsConcentration effect on the stereoselectivity of [4+2] cycloaddition reactions of 3-cyano-γ-benzopyrone derivatives with electron rich dienes New approach to (3R,4R)-3-amino-N-benzyloxycarbonyl-4-hydroxy-hexahydro-1H-azepine using ring expansion of optically active piperidine derivative Stable antiaromatic 1,4-diazapentalenes : synthesis and oxidation reaction of 2-vinyl- and 2,5-divinyl-1,4-dihydropyrrolo[3,2-b]pyrrole derivatives Efficient phenylsulfenylation and phenylselenenylation at the 5-position of uracil nucleosides with disulfide and diselenide mediated by [bis(trifluoroacetoxy)-iodo]benzene Preparation and spectroscopic properties of trichotomine derivatives bearing sterically hindered acyl groups on C-1 and -1' Reaction of 4-bromobenzyl-3-methyl-1,2-oxazin-6-ones with primary aliphatic amines : synthesis and structural determination of new oxazine and isoxazole derivatives Silver(Ⅰ) ion-mediated desulfurization-condensation of carbon disulfide with some hydroxyl compounds Mn(Ⅲ)-based reaction of alkenes with pyrrolidinedione derivatives : formation of bicyclic peroxides and the related compounds Reaction of β-, γ-, and δ-chloroalkanamides with potassium tert-butoxide in tetrahydrofuran : elimination, and lactamization Syntheses of novel acyclic nucleosides, 9-(4'-hydroxy-2'-methylbut-1'-enyl)-adenine and related compounds Isolation of two unusual tetrahydroisoquinoline-monoterpene glucosides from Alangium lamarckii as possible intermediates in the non-enzymatic formation of alangimarine from alangiside A synthesis of the quinolizidine alkaloids (±)-lasubine I and (±)-lasubine II New triterpenoidal alkaloids from the leaves of Buxus papillosa 2-haloalkylidenepropanedinitriles in the synthesis of fused pyrimidines Regio- and diastereoselective 1,3-diploar cycloaddition of imidazoline 3-oxides to styrene Synthesis of the 3a-(3-indolyl)-1,2,3,3a,8,8a-hexahydropyrrolo-[2,3-b]indole core of leptosins D-F Three new coumarins from Clausena excavata Synthesis of 2-trifluoromethyl-2,3,4,5-tetrahydro-1H-3-benzazepine derivatives s-triazolo[3,4-b]-1,3,4-thiadiazole derivatives
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