[Hysp2] and [Hap2]didemnin B, two new [Hip2]-modified didemnin B from the tunicate Trididemnum cyanophorum

被引:9
作者
Banaigs, B [1 ]
Abou Mansour, E [1 ]
Bonnard, I [1 ]
Boulanger, A [1 ]
Francisco, C [1 ]
机构
[1] Univ Perpignan, Ctr Phytopharm, CNRS, URA 461, F-66860 Perpignan, France
关键词
marine metabolites; depsipeptides; mass spectrometry; NMR;
D O I
10.1016/S0040-4020(99)00524-4
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The structures of two new didemnins ([Hysp(2)]didemnin B and [Hap(2)]didemnin B) from the Aplousobranch ascidian Trididemnum cyanophorum (Didemnidae) are described. Structures are determined by a combination of mass spectrometry and one and two-dimensional high-field NMR techniques. Complete H-1 and C-13 NMR spectral assignments and conformational informations are presented. The cytotoxicities of the compounds towards drug-sensitive and drug-resistant tumor cell lines are: compared with those of didemnins A and B. (C) 1999 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:9559 / 9574
页数:16
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