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文章名     作者     期刊名     摘要     卷     期         如果没有找到您所需要的文献，请点击 ——此处申请     共94条记录   TOTAL SYNTHESIS OF (-)-FLUSTRAMINE B VIA ONE-POT INTRAMOLECULAR ULLMANN COUPLING AND CLAISEN REARRANGEMENT [作者：HIRANO TOMOHIRO; IWAKIRI KANAKO; MIYAMOTO HIROSHI; NAKAZAKI ATSUO; KOBAYASHI SUSUMU,期刊：Heterocycles, 页码：805-820 , 文章类型： Article，,卷期：2009年79-1] Total synthesis of (-)-flustramine B was achieved via one-pot intramolecular Ullmann coupling and Claisen rearrangement. A striking feature of this method of synthesis is that the sequential intramolecular Ullmann coupli... THE DAKIN-WEST REACTION OF N-ACYLPROLINES IN THE PRESENCE OF INORGANIC BASES: UNEXPECTED FORMATION OF ENOL ESTERS [作者：SAEKI MOMOKO; HAGIMOTO YURI; UNO HIDEMITSU; KAWASE MASAMI,期刊：Heterocycles, 页码：821-830 , 文章类型： Article，,卷期：2009年79-1] A novel transformation of N-acylprolines (1) to enol esters (2) was realized by utilizing chlorodifluoroacetic or trifluoroacetic anhydrides in the presence of inorganic bases, in which probable intermediates were mesoio... SYNTHESES AND ABSOLUTE CONFIGURATION ASSIGNMENTS OF MONO- AND DI-SUBSTITUTED CHIRAL QUINOLINE ALKALOIDS OBTAINED BY ASYMMETRIC OXIDATION [作者：BARR STEPHEN A; BOYD DEREK R; SHARMA NARAIN D; LOKE PUI L,期刊：Heterocycles, 页码：831-850 , 文章类型： Article，,卷期：2009年79-1] Mono- and di-substituted quinoline, 2-quinolone, dihydrofuroquinoline and dihydropyranoquinoline alkaloids have been synthesised with enantiomeric excess values of > 90%, via asymmetric epoxidation, or asymmetric dihydro... John W. Daly: The Early Years. The NIH Shift and Cyclic-AMP Assays: Early Pharmacological Breakthroughs [作者：KIRK KENNETH L; GUSOVSKY FABIAN,期刊：Heterocycles, 页码：85-93 , 文章类型： Biographical-Item，,卷期：2009年79-1] Although trained as an organic chemist, John Daly embarked in his early years at NIH on several research projects that involved a significant and sophisticated application of biochemistry and pharmacology. He was able to... DEVELOPMENT OF CYCLIC HYDRAZINE AND HYDRAZIDE TYPE ORGANOCATALYST-MECHANISTIC ASPECTS OF CYCLIC HYDRAZINE/HYDRAZIDE-CATALYZED DIELS-ALDER REACTIONS [作者：SUZUKI ICHIRO; HIRATA AI; TAKEDA KEI,期刊：Heterocycles, 页码：851-863 , 文章类型： Article，,卷期：2009年79-1] Some hydrazines and hydrazides were prepared and screened for their catalytic efficiencies in Diets-Alder reactions. H-1-NMR studies and ab initio calculations revealed that catalytic efficiencies of these catalysts are ... EFFECT OF ARYL SUBSTITUENTS ON INTRAMOLECULAR CYCLIZATION OF 2,2 '-BIPHENOQUINONES [作者：HAYASHI NAOTO; KANDA AKIFUMI; KAMOTO TAKU; HIGUCHI HIROYUKI; AKITA TAKEYUKI,期刊：Heterocycles, 页码：865-872 , 文章类型： Article，,卷期：2009年79-1] Effect of aryl substituents on intramolecular cyclizations of 3,3',5,5'-tetraaryl-2,2'-biphenoquinones (Ar = phenyl (1a) and 4-methoxyphenyl (1b)) has been studied. In benzene, 1a gave 2,4,6,8-tetraphenyldibenzofuran-1-o... SYNTHESIS OF A NOVEL TRANS-3 ',4 '-BNA MONOMER BEARING A 4,8-DIOXA-5-AZABICYCLO[5.3.0]DECANE SKELETON [作者：KODAMA TETSUYA; SUGAYA KENSAKU; BABA TAKESHI; IMANISHI TAKESHI; OBIKA SATOSHI,期刊：Heterocycles, 页码：873-882 , 文章类型： Article，,卷期：2009年79-1] A novel trans-3',4'-BNA monomer, in which sugar conformation was restricted to S-type by a trans-fused 3-oxa-4-azapentylene bridge between C3' and C4' position, was designed and synthesized. The trans-fused 7-membered cy... N-GLYCOSYLHYDROXYLAMINES AS MASKED POLYHYDROXYLATED CHIRAL NITRONES IN CYCLOADDITION REACTIONS: AN ACCESS TO PYRROLIZIDINES [作者：MARRADI MARCO; CORSI MASSIMO; CICCHI STEFANO; BONANNI MARCO; CARDONA FRANCESCA; GOTI ANDREA,期刊：Heterocycles, 页码：883-896 , 文章类型： Article，,卷期：2009年79-1] N-glycosylhydroxylamines undergo 1,3-dipolar cycloadditions via their tautomeric open chain nitrones. Cycloadditions to maleic acid esters occur with high diastereoselectivity and the products can be converted into highl... HYDROPHILIC DIAZIRINE POLYMER FOR ONE-STEP PHOTO-FABRICATION OF PROTEINS ON POLYPROPYLENE SURFACE [作者：TOMOHIRO TAKENORI; TACHI NORIE; AZUMA YUSUKE; HATANAKA YASUMARU,期刊：Heterocycles, 页码：897-908 , 文章类型： Article，,卷期：2009年79-1] A facile photochemical fabrication of chemical and biological functionalities on polypropylene surface has been performed by using photoactivatable polymers containing diazirine photophore. The water-soluble polymers hav... ANTINEOPLASTIC AGENTS. 575. THE FUNGUS Aspergillus phoenicis. [作者：PETTIT GEORGE R; DU JIANG; PETTIT ROBIN K; KNIGHT JOHN C; DOUBEK DENNIS L,期刊：Heterocycles, 页码：909-916 , 文章类型： Article，,卷期：2009年79-1] Cancer cell line bioassay-guided separation of an extract from the fungus Aspergillus phoenicis collected in Saskatchewan, Canada, resulted in the isolation of three new constituents designated asperlactone (1), aspergil... PETIOLINS D AND E, PHLOROGLUCINOL DERIVATIVES FROM HYPERICUM PSEUDOPETIOLATUM VAR-KIUSIANUM [作者：TANAKA NAONOBU; KUBOTA TAKAAKI; ISHIYAMA HARUAKI; KASHIWADA YOSHIKI; TAKAISHI YOSHIHISA; ITO JUNJI; MIKAMI YUZURU; SHIRO MOTOO; KOBAYASHI JUNICHI,期刊：Heterocycles, 页码：917-924 , 文章类型： Article，,卷期：2009年79-1] A new phloroglucinol derivative possessing citran skeleton, petiolin D (1), and a new chromone glucoside, petiolin E (2), were isolated from aerial parts of Hypericum pseudopetiolatum var. kiusianum. The structures of I ... A Life Dedicated to Chemistry in Nature Preface [作者：KANAOKA YUICHI,期刊：Heterocycles, 页码：1-2 , 文章类型： Biographical-Item，,卷期：2009年79-1] A SYNTHETIC APPROACH TO DEVELOP PEPTIDE INHIBITORS SELECTIVE FOR BRAIN-TYPE SODIUM CHANNELS ON THE BASIS OF POMPILIDOTOXIN STRUCTURE [作者：YOKOTE SAWANA; SETOGUCHI RITSUKO; SHIMIZU EISUKE; MISHIMA NAOKI; KAWAHARA KOHICHI; KUNIYASU AKIHIKO; SHIRASAKI TETSUYA; TAKAHAMA KAZUO; KONNO KATSUHIRO; KAWAI NOBUFUMI; YAMAOKA KAORU; KINOSHITA EIJI; NAKAYAMA HITOSHI,期刊：Heterocycles, 页码：925-933 , 文章类型： Article，,卷期：2009年79-1] To develop inhibitors that are selective for brain-type sodium channels, several peptides were synthesized on the basis of pompilidotoxin structure. A peptide having N-terminal 7 amino acids and its homologs in which Phe... FORMAL SYNTHESIS OF (5R,8R,8aS)-INDOLIZIDINE 209I VIA ENAMINONES INCORPORATING WEINREB AMIDES [作者：DE KONING CHARLES B; MICHAEL JOSEPH P; RILEY DARREN L,期刊：Heterocycles, 页码：935-953 , 文章类型： Article，,卷期：2009年79-1] A formal enantioselective synthesis of the amphibian alkaloid (5R,8R,8aS)-(-)-indolizidine 2091 (6) is reported. Control or the absolute, stereochemistry at C-5 resulted from application of the Davies procedure, which en... The John Daly I Knew in Madagascar: November 1989-December 1993 January 1994-December 1998-February 2003 [作者：ANDRIAMAHARAVO NIRINA R,期刊：Heterocycles, 页码：95-98 , 文章类型： Biographical-Item，,卷期：2009年79-1] A NEW SYNTHETIC ROUTE TO THE 1-OXYGENATED CARBAZOLE ALKALOIDS, MUKONINE AND CLAUSINE E (CLAUZOLINE I) [作者：TOHYAMA SHIGEO; CHOSHI TOMINARI; AZUMA SHUHEI; FUJIOKA HARUTO; HIBINO SATOSHI,期刊：Heterocycles, 页码：955-965 , 文章类型： Article，,卷期：2009年79-1] A new synthesis of the I-oxygenated 1,3-disubstituted carbazole alkaloids, mukonine (1a) and ciausine (1f) is described. The construction of the carbazole framework is based on an allene-mediated electrocyclic reaction i...