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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15条记录   SYNTHESIS OF 1-AMINO-1-ARYL-1,2-DIHYDROPYRROLO[3,4-c]PYRIDIN-3-ONE DERIVATIVES BY THE REACTION OF 4-LITHIOPYRIDINE-3-CARBONITRILE WITH AROMATIC TERTIARY AMIDES [作者：KOBAYASHI KAZUHIRO; NAKAGAWA KAZUHIRO; KOZUKI TAKETOSHI,期刊：Heterocycles, 页码：165-170 , 文章类型： Article，,卷期：2012年85-1] A one-pot procedure for the preparation of 1-amino-1-aryl-1,2-dihydropyrrolo[3,4-c]pyridin-3-one derivatives from pyridine-3-carbonitrile and aromatic tertiary amides has been developed. Thus, the reaction of 4-lithiopyr... FIRST SYNTHESIS OF [6-N-15]-CLADRIBINE USING RIBONUCLEOSIDE AS A STARTING MATERIAL [作者：SAKAKIBARA NORIKAZU; KAKOH AI; MARUYAMA TOKUMI,期刊：Heterocycles, 页码：171-182 , 文章类型： Article，,卷期：2012年85-1] We have synthesized two types of [6-N-15]-deoxyadenosine analogs: [6-N-15]-2'-deoxyadenosine (1) and [6-N-15]-2-chloro-2'-deoxyadenosine ([6-N-15]-cladribine, 2), which utilized the readily available ribonucleosides inos... FIRST SYNTHESIS OF 2-HETEROARYLAZULENES BY THE ELECTROPHILIC SUBSTITUTION OF AZULENE WITH TRIFLATE OF N-CONTAINING HETEROCYCLES [作者：SHOJI TAKU; INOUE YUTA; ITO SHUNJI; OKUJIMA TETSUO; MORITA NOBORU,期刊：Heterocycles, 页码：35-41 , 文章类型： Article，,卷期：2012年85-1] An efficient synthesis of 2-heteroarylazulene derivatives was established via electrophilic substitution. The reaction of 6-dimethylamino-1,3-di(methylthio)azulene (1a) with the triflate of N-containing heteroarenes proc... UNEXPECTED TANDEM REACTION OF NEW TYPE MORITA-BAYLIS-HILLMAN ADDUCTS PROMOTED BY [HMIM]HSO4/NANO(3) SYSTEM [作者：ZHONG WEIHUI; WANG GUAN; CHEN KAI,期刊：Heterocycles, 页码：43-56 , 文章类型： Article，,卷期：2012年85-1] A tandem reaction of new type Baylis-Hillman adducts 1 was prompted by ionic liquid [Hmim]HSO4/NaNO3 system and the unexpected products 6-aryl-2H-pyran-3-carboxylates 2 and imidazolium salts 3 were efficiently formed via... 1,3-DIPOLAR CYCLOADDITION REACTION IN PORPHYRIN SYSTEMS WITH FUNCTIONALIZED ALKYL NITRILE OXIDES - SYNTHESIS OF ISOXAZOLINE-FUSED CHLORINS [作者：WYREBEK PRZEMYSLAW; MIKUS AGNIESZKA; OSTROWSKI STANISLAW,期刊：Heterocycles, 页码：57-64 , 文章类型： Article，,卷期：2012年85-1] meso-Tetraphenylporphyrin reacts at higher temperature with unstable alkyl nitrile oxides (R-C N -> O) affording isoxazoline-fused chlorins according to dipolar [3+2]-cycloaddition pathway. The respective nitrile oxides... ITERATIVE ONE POT REACTIONS OF A CHIRAL SULFAMIDATE WITH 2,4,6-TRICHLOROPYRIDINE: REGIOCONTROLLED SYNTHESIS OF LINEAR AND ANGULAR CHIRAL DIPYRROLIDINO PYRIDINES [作者：HEBEISEN PAUL; ALKER ANDRE; BUERKLER MARKUS,期刊：Heterocycles, 页码：65-72 , 文章类型： Article，,卷期：2012年85-1] The product of the ring opening of a chiral sulfamidate with the 3-lithiopyridine species obtained by deprotonation of 2,4,6-trichloropyridine with n-BuLi can be deprotonated again in situ with n-BuLi and reacted with a ... STEREOSELECTIVE SYNTHESIS OF MELATONIN RECEPTOR AGONIST RAMELTEON VIA ASYMMETRIC MICHAEL ADDITION [作者：ZHANG XUAN; YUAN WEI; LUO YU; HUANG QINGQING; LU WEI,期刊：Heterocycles, 页码：73-84 , 文章类型： Article，,卷期：2012年85-1] Highly enantioselective asymmetric Michael addition was used to synthesize ramelteon and its analogue. The asymmetric strategy provides an efficient approach for the medicinal modification of ramelteon with high ee value... USEFUL BUILDING BLOCKS FOR THE STEREOCONTROLLED ASSEMBLY OF 2,3,5-TRISUBSTITUTED PYRROLIDINES [作者：TURNER CHARLES DYLAN; CIUFOLINI MARCO A,期刊：Heterocycles, 页码：85-94 , 文章类型： Article，,卷期：2012年85-1] A protected pyroglutamol derivative is converted into an all-cis, differentially protected 2,3,5-trisubstituted pyrrolidine, which is amenable to elaboration into more complex nitrogenous educts. MEGOURAPHIN GLUCOSIDES: TWO YELLOWISH PIGMENTS FROM THE APHID MEGOURA CRASSICAUDA [作者：HORIKAWA MITSUYO; KIKUCHI DAISUKE; IMAI TOSHIHITO; TANAKA MASAMI; KAKU HIROTO; NISHII TAKESHI; INAI MAKOTO; TAKAHASHI SHIGERU; TSUNODA TETSUTO,期刊：Heterocycles, 页码：95-101 , 文章类型： Article，,卷期：2012年85-1] Two new yellow pigments, megouraphin glucosides A (1) and B (2), were isolated from the aphid Megoura crassicauda. Their structures were established by detailed analysis of their 1D and 2D NMR spectra and via chemical co... RECENT ADVANCES IN THE CHEMISTRY AND SYNTHETIC USES OF MAGNESIUM CARBENOIDS [作者：SATOH TSUYOSHI,期刊：Heterocycles, 页码：1-33 , 文章类型： Review，,卷期：2012年85-1] Carbenes and carbenoids have long been recognized to be a highly reactive species and are frequently used as intermediates in organic synthesis. However, most of the carbenes and carbenoids are relatively short-lived and... POLYCYCLIC QUINOLONES (PART 1) - THIENO[2,3-b]BENZO[h]QUINOLINE DERIVATIVES: DESIGN, SYNTHESIS, PRELIMINARY IN VITRO AND IN SILICO STUDIES [作者：AHMED ABEER; DANESHTALAB MOHSEN,期刊：Heterocycles, 页码：103-122 , 文章类型： Article，,卷期：2012年85-1] Heterocyclic systems with a quinoline nucleus represent the most spectacular example of privileged molecules in medicinal chemistry, as their biological activities are surely affected by changes in structural features. Q... POLYCYCLIC QUINOLONES (PART 2) - SYNTHESIS OF NOVEL 4-OXO-1,4-DIHYDROBENZO[h][1,3]THIAZETO[3,2-a]QUINOLINE CARBOXYLIC ACIDS VIA OXIDATIVE CYCLIZATION OF THE CORRESPONDING 2-MERCAPTOQUINOLINE PRECURSORS [作者：AHMED ABEER; DAWE LOUISE N; DANESHTALAB MOHSEN,期刊：Heterocycles, 页码：123-133 , 文章类型： Article，,卷期：2012年85-1] The first synthesis of a series of 4-oxo-1,4-dihydrobenzo[h][1,3]thiazeto[3,2-a]quinoline carboxylic acids and their esters via oxidative cyclization of ethyl 2-((2-ethoxy-2-oxoethyl)thio)-4-hydroxybenzo[h]quinoline-3-ca... BRIAROXALIDES: NOVEL DIEPOXYBRIARANE DITERPENES FROM AN OKINAWAN GORGONIAN BRIAREUM SP. [作者：OTA KOICHIRO; OKAMOTO NAOKO; MITOME HIDEMICHI; MIYAOKA HIROAKI,期刊：Heterocycles, 页码：135-145 , 文章类型： Article，,卷期：2012年85-1] Seven new 8,17- and 11,12-diepoxybriarane diterpenoids, briaroxalides A-G (1-7), were isolated from an Okinawan gorgonian Briareum sp. The structures of the diterpenoids were determined on the basis of spectroscopic anal... LIGNAN DERIVATIVES FROM THE LEAVES NICOTIANA TABACUM AND THEIR ACTIVITIES [作者：GAO XUEMEI; LI XUESEN; YANG XINZHOU; MU HUAIXUE; CHEN YONGKUAN; YANG GUANGYU; HU QIUFEN,期刊：Heterocycles, 页码：147-153 , 文章类型： Article，,卷期：2012年85-1] Two new lignan derivatives, nicotnorlignan A and nicotlactone A (1, 2), together with two known lignan derivatives (3, 4) were isolated from the leaves of Nicotiana tabacum. Their structures were elucidated by spectrosco... A FACILE ONE-POT SYNTHESIS OF SULFUR-LINKED THIENO[1,2,4]TRIAZOLO[4,3-c]PYRIMIDINE DERIVATIVES CONTAINING PHENYLPYRAZOLE OR THIENOPYRIMIDINYLPYRAZOLE MOIETY [作者：WHANG JINA; SONG YANGHEON,期刊：Heterocycles, 页码：155-164 , 文章类型： Article，,卷期：2012年85-1] A facile synthesis of sulfur-linked thieno[1,2,4]triazolo[4,3-c]pyrimidine derivatives containing phenylpyrazole or thienopyrimidinylpyrazole moiety via a one-pot reaction of thieno[1,2,4]triazolo[4,3-c]pyrimidine-3(2H)-...