Pulcherrimins A-D, novel diterpene dibenzoates from Caesalpinia pulcherrima with selective activity against DNA repair-deficient yeast mutants

被引:38
作者
Patil, AD
Freyer, AJ
Webb, RL
Zuber, G
Reichwein, R
Bean, MF
Faucette, L
Johnson, RK
机构
[1] SMITHKLINE BEECHAM PHARMACEUT,DEPT ANALYT SCI,R&D,KING OF PRUSSIA,PA 19406
[2] SMITHKLINE BEECHAM PHARMACEUT,DEPT PHYS & STRUCT CHEM,R&D,KING OF PRUSSIA,PA 19406
关键词
D O I
10.1016/S0040-4020(96)01135-0
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Bioassay-guided fractionation of the MeOH/CH2Cl2 extract of the roots of Caesalpinia pulcherrima yielded four novel dibenzoate diterpenes, pulcherrimins A, B, C and D (1-4). The structures of these compounds including their absolute configuration were established by interpretation of spectral data and CD measurements. Pulcherrimins A and B (1 and 2) were found to be active in DNA repair-deficient yeast mutant. (C) 1997, Elsevier Science Ltd.
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收藏
页码:1583 / 1592
页数:10
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