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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54条记录   A NEW 3-(ETHOXYCARBONYLMETHYL)ISOXAZOLOPYRIDONE AS A PRECURSOR TO ACYLPYRIDONES [作者：JONES RAYMOND C F; ILEY JAMES N; LOIZOU GEORGIA,期刊：Heterocycles, 页码：1235-1244 , 文章类型： Article，,卷期：2012年84-2] A new 3-(ethoxycarbonylmethyl)isoxazolo[4,3-c]pyridin-4-one has been prepared as a potential precursor to 3-acyl-4-hydroxypyridin-2-ones, by a route involving dipolar cycloaddition of nitrile oxides derived from beta-ala... NONACTIN AND RELATED COMPOUNDS FOUND IN A SCREENING PROGRAM FOR WNT SIGNAL INHIBITORY ACTIVITY [作者：TAMAI YUUYA; TOUME KAZUFUMI; ARAI MIDORI A; HAYASHIDA AKINORI; KATO HIKARU; SHIZURI YOSHIKAZU; TSUKAMOTO SACHIKO; ISHIBASHI MASAMI,期刊：Heterocycles, 页码：1245-1250 , 文章类型： Article，,卷期：2012年84-2] A screening study using a luciferase assay to identify natural products with inhibitory activity against Wnt signaling was carried out. Fractionation of the culture extract of an actinomycete, strain CKK179, led to the i... SYNTHESIS OF OCTAHYDROQUINOLIZINONES AZA-ANALOGUES OF TERPENOID SKELETONS [作者：BRANDI ALBERTO; CORDERO FRANCA M; VURCHIO CAROLINA; LUCENTINI MASSIMO; CICCHI STEFANO,期刊：Heterocycles, 页码：1251-1258 , 文章类型： Article，,卷期：2012年84-2] Two new ketones, 6,6,9a-trimethyl-octahydro-quinolizin-2-one and 4,4,9a-trimethyl-octahydro-quinolizin-2-one, were synthesized by regioselective 1,3-dipolar cycloaddition of tetrahydropyridine nitrones with methylenecycl... SABINAPERINS A AND B, TWO NEW LIGNANS FROM JUNIPERUS SABINA [作者：JANAR JENIS; NUGROHO ALFARIUS EKO; HIRASAWA YUSUKE; KONIRHAN BAHARGUL; MORITA HIROSHI,期刊：Heterocycles, 页码：1259-1263 , 文章类型： Article，,卷期：2012年84-2] Two new lignans, sabinaperins A (1) and B (2), have been isolated from the aerial part of Juniperus sabina L. together with six known lignans. Their structures were established on the basis of 1D and 2D-NMR data analysis... CHISOMICINES D AND E, TWO NEW LIMONOIDS FROM CHISOCHETON CERAMICUS [作者：NAJMULDEEN IBRAHIM A; HADI A HAMID A; MOHAMAD KHALIT; AWANG KHALIJAH; KETULY KAMAL AZIZ; MUKHTAR MAT ROPI; TAHA HAIRIN; NORDIN NORAZIAH; LITAUDON MARC; GUERITTE FRANCOISE; NUGROHO ALFARIUS EKO; MORITA HIROSHI,期刊：Heterocycles, 页码：1265-1270 , 文章类型： Article，,卷期：2012年84-2] Two new limonoids, chisomicines D and E (1 - 2) have been isolated from the bark of Malaysian Chisocheton ceramicus (Miq.) C. DC. Their structures were elucidated on the basis of ID and 2D-NMR data analysis. 2ND GENERATION PALLADIUM-CATALYZED CYCLOALKENYLATION IN IRIDOID SYNTHESIS: DIASTEREOSELECTIVE TOTAL SYNTHESES OF ISOIRIDOMYRMECIN AND ISODIHYDRONEPETALACTONE [作者：TAKEDA KAZUTAKA; TOYOTA MASAHIRO,期刊：Heterocycles, 页码：1271-1276 , 文章类型： Article，,卷期：2012年84-2] Two different types of iridoids, isoiridomyrmecin and isodihydronepetalactone, were diastereoselectively synthesized using a 2nd generation palladium-catalyzed cycloalkenylation as the key step. A FACILE AND CONVENIENT METHOD FOR THE SYNTHESIS OF 6,8-BIS(TRIFLUOROACETYL)QUINOLIN-5-AMINES [作者：SHIBATA DAI; MEDEBIELLE MAURICE; HATAKENAKA MIZUKI; OKADA ETSUJI,期刊：Heterocycles, 页码：1277-1284 , 文章类型： Article，,卷期：2012年84-2] New 6,8-bis(trifluoroacetyl)quinolin-5-amines (6) were easily prepared in moderate to high yields by the aromatic nucleophilic nitrogen-nitrogen exchange reaction of N,N-dimethyl-6,8-bis(trifluoroacetyl)-quinolin-5-amine... REINVESTIGATION OF THE CLASSICAL TOTAL SYNTHESIS OF MAKOMAKINE [作者：FURUYA MAKOTO; NAGATOMO AYUMI; TOYOTA MASAHIRO,期刊：Heterocycles, 页码：1285-1288 , 文章类型： Article，,卷期：2012年84-2] Reinvestigation of the original Stevens synthesis of makomakine showed that the yield of the Ritter reaction of 3-indoylacetonitrile with (-)-beta-pinene could be increased by employing Hg(OTf)(2). AN IMPROVED SYNTHESIS OF FUNCTIONALIZED CIS-DECAHYDROQUINOLINES USING A BAYLIS-HILLMAN-TYPE ADDUCT [作者：HUANG JUNFENG; PETERSEN JEFFREY; BERGMEIER STEPHEN C,期刊：Heterocycles, 页码：1289-1299 , 文章类型： Article，,卷期：2012年84-2] An efficient and diastereoselective method to synthesize highly functionalized cis-decahydroquinolines was reported. The addition of a vinyl aluminum reagent to an aldehyde followed by an intramolecular S(N)2' Mitsunobu ... PRACTICAL TOTAL SYNTHESIS OF LUOTONIN A BY INTRAMOLECULAR DOUBLE HETERO DIELS-ALDER REACTION [作者：NATSUKI KEN; SHINDO TADAMICHI; TOYOTA MASAHIRO,期刊：Heterocycles, 页码：1301-1304 , 文章类型： Article，,卷期：2012年84-2] An intramolecular double hetero Diels-Alder reaction of N-(2-cyanoquinolin-3-ylmethyl)-2-tosyloxybenzamide (3c) provided luotonin A (2) in 82% yield. Surprisingly, N-(2-bromoquinolin-3-ylmethyl)-2-tosyloxybenzamide (4) d... QUINOLINE FUSED HETEROCYCLES FROM INTRAMOLECULAR CYCLOADDITION REACTIONS [作者：CREMONESI GIUSEPPE; DALLA CROCE PIERO; GALLANTI MADDALENA; LA ROSA CONCETTA,期刊：Heterocycles, 页码：1305-1312 , 文章类型： Article，,卷期：2012年84-2] Ring fused quinoline heterocycles such as isoxazolo-, pyrrolo- and pyrazoloquinolines (7,9,1:1,14) have been prepared by intramolecular 1,3-dipolar cycloaddition reactions starting from the suitable intermediates. The st... SYNTHESIS OF RUTHENIUM(II) 2,6-BIS(IMINO)PYRIDYL COMPLEXES FOR C-H AMINATION OF SULFAMATE ESTERS [作者：BON JENNIFER L; BLAKEY SIMON B,期刊：Heterocycles, 页码：1313-1323 , 文章类型： Article，,卷期：2012年84-2] A family of ruthenium(II) 2,6-bis(imino)pyridyl complexes have been developed as a novel catalyst framework for C-H amination. Their synthesis and evaluation is herein described. The reactivity of these catalysts is heav... SYNTHETIC STUDIES ON PASPALINE: LEWIS ACID-MEDIATED SEQUENTIAL CONSTRUCTION OF A-E RING SKELETON [作者：OKANO KENTARO; YOSHII YU; TOKUYAMA HIDETOSHI,期刊：Heterocycles, 页码：1325-1334 , 文章类型： Article，,卷期：2012年84-2] The common pentacyclic skeleton of indole diterpene alkaloids, paspaline and its derivatives was constructed by a sequential reaction. The appropriate choice of the protecting group on the indole nitrogen was critical fo... A SYNTHETIC APPROACH TO AROMATIC AMINOGLYCOSIDE AS A NEAMINE MIMIC [作者：INOUE RYO; MATSUDA SHO; ODA YOSHIKI; OOYAMA HIROFUMI; YOSHIDA AKIHIRO; HAMASAKI KEITA; YAMANOI TAKASHI,期刊：Heterocycles, 页码：1335-1343 , 文章类型： Article，,卷期：2012年84-2] This paper describes the synthetic approach to an aromatic alpha-glycoside as a mimic of neamine, which is a common core structure of some aminoglycoside antibiotics. We achieved the synthesis of the protected precursor ... SYNTHESIS OF SUBSTITUTED PHENAZINES VIA PALLADIUM-CATALYZED ARYL LIGATION [作者：WINKLER JEFFREY D; TWENTER BARRY M; GENDRINEAU THOMAS,期刊：Heterocycles, 页码：1345-1353 , 文章类型： Article，,卷期：2012年84-2] A method for the "ligation" of two aromatic rings has been achieved via synthesis of functionalized phenazines by double Buchwald-Hartwig amination of a variety of substituted bromoanilines, followed by in situ oxidation... DEPROTECTION OF 3,4-DIMETHOXYBENZYL ((DMB)-D-3,4) GROUP ON gamma-LACTAM NITROGEN USING PHENYLIODINE(III) BIS(TRIFLUOROACETATE) (PIFA): APPLICATION TO ISOINDOLINONE COMPOUNDS [作者：WATANABE KAZUHIRO; SHIBATA HIROAKI; IMAI YU; KATOH TADASHI,期刊：Heterocycles, 页码：1355-1361 , 文章类型： Article，,卷期：2012年84-2] The secondary amide (gamma-lactam) moiety of an isoindolinone ring exhibits high polarity in an unprotected condition. Problems with solubility make handling difficult; therefore, introduction of a protective group is ne...