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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71条记录   SHORT AND STEREOCONTROLLED CYCLIC POLYGLYCEROLS SYNTHESIS USING BF3 center dot OEt2 MEDIATED INTRAMOLECULAR EPOXIDE-OPENING REACTION [作者：HAMADA MASAHIRO; KISHIMOTO TAKAO; NAKAJIMA NORIYUKI,期刊：Heterocycles, 页码：1533-1539 , 文章类型： Article，,卷期：2012年86-2] We developed a new method for the stereocontrolled synthesis of cyclic oligoglycerols. Optically pure solketal and epichlorohydrin were coupled with allyl alcohol under aqueous basic conditions to construct a linear trig... SYNTHESIS OF A NOVEL NON-BENZENOID QUINONE, 3,10-DIHYDRO-2,4-DIMETHYL-7,13-METHANOCYCLOHEPTA[11]-AN NULENE-3,10-DIONE, FROM 8H-7,9-BIS(METHOXYCARBONYL)-5,11-METHANO[11]ANNULENO[c]FURAN-8-ONE [作者：KURODA SHIGEYASU; MATSUMOTO NAOKO; ZHANG YANMEI; MIYATAKE RYUTA; FUJIWARA YURIE; ODA MITSUNORI,期刊：Heterocycles, 页码：1541-1547 , 文章类型： Article，,卷期：2012年86-2] 8H-7,9-Bis(methoxycarbonyl)-5,11-methano[11]anuleno[c]furan-8-one (3) undergoes [4+3] cycloaddition with an oxyallyl species generated from 2,4-dibromo-3-pentanone in the presence of KI and copper, followed by dehydratio... COMPUTATIONAL INVESTIGATION OF A PHOTO-SWITCHABLE SINGLE-MOLECULE MAGNET BASED ON A PORPHYRIN TERBIUM DOUBLE-DECKER COMPLEX [作者：INOSE TOMOKO; TANAKA DAISUKE; OGAWA TAKUJI,期刊：Heterocycles, 页码：1549-1554 , 文章类型： Article，,卷期：2012年86-2] Based on the finding that the single-molecule magnetic (SMM) property of porphyrin-Tb-III double-decker complexes can be switched by simple protonation and deprotonation, a theoretical consideration of the photo-induced ... DIVERSITY ORIENTED APPROACH TO 9-ARYL-SUBSTITUTED NAPHTHOXEPINE DERIVATIVES VIA CLAISEN REARRANGEMENT, RING-CLOSING METATHESIS AND SUZUKI-MIYAURA CROSS-COUPLING AS KEY STEPS [作者：KOTHA SAMBASIVARAO; SRINIVAS VENU; KRISHNA NIMITA G,期刊：Heterocycles, 页码：1555-1563 , 文章类型： Article，,卷期：2012年86-2] A novel route to a variety of 9-aryl-substituted naphthoxepine derivatives is described starting with 6-bromo-2-naphthol via Claisen rearrangement (CR), ring-closing metathesis (RCM) and Suzuki-Miyaura (SM) cross-couplin... SYNTHESIS OF A NEW OSELTAMIVIR DERIVATIVE THROUGH LATE-STAGE CATALYTIC C-H FUNCTIONALIZATION [作者：SAITO KENTA; KANAI MOTOMU,期刊：Heterocycles, 页码：1565-1574 , 文章类型： Article，,卷期：2012年86-2] N-Boc-protected oseltamivir 5 was converted to olefin insertion product 4 via a ruthenium-catalyzed C(sp(2))-H functionalization reaction using its ester functionality as a directing group. The addition of a catalytic am... PREPARATION OF D-CYCLOSERINE AND C-13-LABELED D-CYCLOSERINE [作者：THACKER NATHAN C; MOLNARTOTH JUDIT; MISKA JUDY L; BARLETTA RAUL G; TAKACS JAMES M,期刊：Heterocycles, 页码：1575-1582 , 文章类型： Article，,卷期：2012年86-2] D-Cycloserine (DCS), a second stage drug for the treatment of tuberculosis, is synthesized in 19.8% overall yield from DL-serine methyl ester. This synthetic route gives both enantiomers of cycloserine via a corrected an... PHOSPHONIUM CHLORIDE AS A NON-VOLATILE CHLORINATING REAGENT: PREPARATION AND REACTION IN NO SOLVENT OR IONIC LIQUID [作者：SUGIMOTO OSAMU; HARADA YUKIHIRO; TANJI KENICHI,期刊：Heterocycles, 页码：1583-1590 , 文章类型： Article，,卷期：2012年86-2] Reaction of triphenylphosphine with trichloroisocyanuric acid in no solvent or an ionic liquid gave the corresponding phosphonium chloride, which can be used as a cheap and safe chlorinating reagent. Conversion of hydrox... A NEW GALLOYLBERGENIN FROM BERGENIA CRASSIFOLIA WITH ANTI-LIPID DROPLET ACCUMULATION ACTIVITY [作者：JANAR JENIS; FANG LIANG; WONG CHIN PIOW; KANEDA TOSHIO; HIRASAWA YUSUKE; SHAHMANOVNA BURASHEVA GAUHAR; ABDUAHITOVICH ABILOV ZHARYLKASYN; MORITA HIROSHI,期刊：Heterocycles, 页码：1591-1595 , 文章类型： Article，,卷期：2012年86-2] A new bergenin derivative, 3,11-di-O-galloylbergenin (1) was isolated from the roots of Bergenia crassifolia together with four known related compounds. Their structures were elucidated by spectroscopic and chemical anal... BIOMIMETIC SYNTHESIS OF CHROBISIAMONE A FROM CASSIA SIAMEA [作者：TOMIZAWA YUICHIRO; DEGUCHI JUN; ISHIKAWA TOKIO; HONDA TOSHIO; MORITA HIROSHI,期刊：Heterocycles, 页码：1597-1601 , 文章类型： Article，,卷期：2012年86-2] Chrobisiamone A (1), an unique chromone dimer from leaves of Cassia siamea Lam. (Leguminosae), was synthesized from 5-acetonyl-7-hydroxy-2-methylchromone (2) in 4 steps through biomimetic Michael addition. NEW INDOLE ALKALOIDS FROM ALSTONIA MACROPHYLLA [作者：DEGUCHI JUN; SHOJI TOMOKAZU; HIRASAWA YUSUKE; RAHMAN ABDUL; SHIROTA OSAMU; MORITA HIROSHI,期刊：Heterocycles, 页码：1603-1610 , 文章类型： Article，,卷期：2012年86-2] Alkaloidal investigations of Alstonia macrophylla led to the isolation of a new 3-alkylpyridinium-indole-2-carboxylate scaffold alkaloid, N(1)-demethyl-7-methoxyikirydinium A (1) and a yohimbane-type alkaloid, 10-methoxy... NEW ASPIDOFRACTININE, ASPIDOSPERMATAN AND AKUAMILINE INDOLE ALKALOIDS FROM THE ROOTS OF KOPSIA SINGAPURENSIS RIDL. [作者：AHMAD KARTINI; HIRASAWA YUSUKE; NUGROHO ALFARIUS EKO; HADI A HAMID A; MORITA HIROSHI,期刊：Heterocycles, 页码：1611-1619 , 文章类型： Article，,卷期：2012年86-2] Three new aspidofractinines; N(1)-formylkopsininic acid (1), N(1)-formylkopsininic acid-N(4)-oxide (2), 15-hydroxykopsamine (3), a new aspidospermatan; 14 alpha-hydroxy-N(4)-methylcondylocarpine (4) and a new akuamiline;... SYNTHESIS OF 1,4-PHOSPHASILACYCLOHEXA-2,5-DIENES BEARING HYDROGEN OR CHLORINE ATOMS ON THE SILICON ATOMS [作者：MIZUHATA YOSHIYUKI; MORIKAWA SATOSHI; TOKITOH NORIHIRO,期刊：Heterocycles, 页码：1621-1635 , 文章类型： Article，,卷期：2012年86-2] 2,3,5,6-Unsubstituted 1,4-phosphasilacyclohexa-2,5-dienes bearing a functional group on the silicon atom were synthesized via the corresponding stannacycle. The structures of newly synthesized silacyclic compounds were d... SYNTHESIS AND STABILITY OF 3-HYDROXYANAGRELIDE, A BIOLOGICALLY POTENT METABOLITE OF ANAGRELIDE [作者：SCOTT RICHARD B; DOWNEY KRISTIN M; HEALY KEITH P; HENDERSON ALISTAIR P; ROBINSON CLAIRE L; CLEGG WILLIAM; HARRINGTON ROSS W; FRANKLIN RICHARD; GOLDING BERNARD T,期刊：Heterocycles, 页码：1637-1646 , 文章类型： Article，,卷期：2012年86-2] Metabolism of 6,7-dichloro-1,5-dihydroimidazo[2,1-b]quinazolin-2-one (anagrelide), a drug for treating essential thrombocythemia, gives 6,7-dichloro-3-hydroxy-1,5-dihydroimidazo[2,1-b]quinazolin-2-one (3-hydroxyanagrelid... CATALYTIC ASYMMETRIC INTERMOLECULAR C-H INSERTION OF 1,4-CYCLOHEXADIENE WITH alpha-ALKYL-alpha-DIAZOESTERS USING CHIRAL DIRHODIUM(II) CARBOXYLATES [作者：GOTO TAKAYUKI; ONOZUKA TOMOHIRO; KOSAKA YUHEI; ANADA MASAHIRO; TAKEDA KOJI; HASHIMOTO SHUNICHI,期刊：Heterocycles, 页码：1647-1659 , 文章类型： Article，,卷期：2012年86-2] The first example of dirhodium(II) complex-catalyzed asymmetric intermolecular C-H insertion with alpha-alkyl-alpha-diazoesters is described. The reaction of 1,4-cyclohexadiene with 2,4-dimethyl-3-pentyl alpha-alkyl-alph... SYNTHESIS OF A LIBRARY OF 1,5,2-DITHIAZEPINE 1,1-DIOXIDES. PART 1: A ONE-POT SULFONYLATION/THIA-MICHAEL PROTOCOL [作者：ZANG QIN; ZHOU AIHUA; JAVED SALIM; MAITY PRADIP K; KNUDTSON CHRIS A; BI DANSE; HASTINGS JARED J; BASHA FATIMA Z; HANSON PAUL R,期刊：Heterocycles, 页码：1661-1674 , 文章类型： Article，,卷期：2012年86-2] A novel one-pot sulfonylation/intramolecular thia-Michael protocol is reported for the synthesis of 1,5,2-dithiazepine 1,1-dioxides. Sulfonylation between cysteine ethyl ester/cysteamine and 2-chloroethanesulfonyl chlori... SYNTHESIS OF A LIBRARY OF 1,5,2-DITHIAZEPINE 1,1-DIOXIDES. PART 2: ROUTES TO BICYCLIC SULTAMS [作者：ZANG QIN; JAVED SALIM; ZHOU AIHUA; KNUDTSON CHRIS A; BI DANSE; BASHA FATIMA Z; HANSON PAUL R,期刊：Heterocycles, 页码：1675-1688 , 文章类型： Article，,卷期：2012年86-2] The synthesis of a library of bicyclic sultams incorporating the 1,5,2-dithiazepine 1,1-dioxide moiety is reported. Following scaffold synthesis via a one-pot sulfonylation/intramolecular thia-Michael protocol, several a...