EPIAFZELECHIN-(4-BETA-]8,2-BETA-]0-]7)-ENT-AFZELECHIN FROM CASSIPOUREA-GERRARDII

被引：14

作者：

DREWES, SE

TAYLOR, CW

CUNNINGHAM, AB

FERREIRA, D

STEENKAMP, JA

MOUTON, CHL

机构：

[1] UNIV NATAL,INST NAT RESOURCES,PIETERMARITZBURG 3200,SOUTH AFRICA

[2] UNIV ORANGE FREE STATE,DEPT CHEM,BLOEMFONTEIN 9300,SOUTH AFRICA

来源：

PHYTOCHEMISTRY | 1992年 / 31卷 / 07期

关键词：

CASSIPOUREA-GERRARDII; RHIZOPHORACEAE; A-TYPE PROANTHOCYANIDIN; FLAVAN-3-O1;

D O I：

10.1016/0031-9422(92)83307-K

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

A new A-type proanthocyanidin has been isolated from the bark of Cassipourea gerrardii. Its structure has been established from spectroscopic studies as epiafzelechin-(4-beta --> 8,2-beta --> 0 --> 7)-ent-afzelechin. H-1 NMR analysis of R-(+)- and S-(-)-alpha-methoxy-alpha-trifluoromethylphenylacetic acid (MTPA) esters of the title compound permits assessment of the absolute stereochemistry at both C-3(C) and C-3(F).

引用

页码：2491 / 2494

页数：4

共 12 条

[1] BALDE AM, 1991, J CHEM SOC P1, V30, P337
[2] NUCLEAR MAGNETIC-RESONANCE ENANTIOMER REAGENTS - CONFIGURATIONAL CORRELATIONS VIA NUCLEAR MAGNETIC-RESONANCE CHEMICAL-SHIFTS OF DIASTEREOMERIC MANDELATE, O-METHYLMANDELATE, AND ALPHA-METHOXY-ALPHA-TRIFLUOROMETHYLPHENYLACETATE (MTPA) ESTERS
DALE, JA
MOSHER, HS
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1973, 95 (02) : 512 - 519
[3] DREWES SE, 1992, IN PRESS PHYTOCHEMIS
[4] STUDIES ON THE CONSTITUENTS OF EPHEDRA .11. MAHUANNIN-B STRUCTURES OF MAHUANNIN-A AND MAHUANNIN-B HYPOTENSIVE PRINCIPLES OF EPHEDRA ROOTS
HIKINO, H
SHIMOYAMA, N
KASAHARA, Y
TAKAHASHI, M
KONNO, C
[J]. HETEROCYCLES, 1982, 19 (08) : 1381 - 1384
[5] ABSOLUTE-CONFIGURATIONS OF FLAVAN-3-OLS AND 4-ARYLFLAVAN-3-OLS VIA A MODIFIED MOSHER METHOD
HUNDT, AF
BURGER, JFW
STEYNBERG, JP
STEENKAMP, JA
FERREIRA, D
[J]. TETRAHEDRON LETTERS, 1990, 31 (35) : 5073 - 5076
[6] PLANT PROANTHOCYANIDINS .2. PROANTHOCYANIDIN-A2 AND ITS DERIVATIVES
JACQUES, D
HASLAM, E
BEDFORD, GR
GREATBANKS, D
[J]. JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1, 1974, (23): : 2663 - 2671
[7] MEYER W, 1966, TETRAHEDRON, P429
[8] NISHIOKA I, 1988, CHEM PHARM BULL, V36, P33
[9] NONAKA G, 1987, CHEM PHARM BULL, V35, P149
[10] STUDIES ON ANTI-INFLAMMATORY AGENTS .6. ANTI-INFLAMMATORY CONSTITUENTS OF CINNAMOMUM-SIEBOLDII MEISSN
OTSUKA, H
FUJIOKA, S
KOMIYA, T
MIZUTA, E
TAKAMOTO, M
[J]. YAKUGAKU ZASSHI-JOURNAL OF THE PHARMACEUTICAL SOCIETY OF JAPAN, 1982, 102 (02): : 162 - 172

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