Total syntheses of five indole alkaloids from the marine bryozoan Flustra foliacea

被引:60
作者
Morales-Ríos, MS [1 ]
Suárez-Castillo, OR [1 ]
Trujillo-Serrato, JJ [1 ]
Joseph-Nathan, P [1 ]
机构
[1] Inst Politecn Nacl, Ctr Invest & Estudios Avanzados, Dept Quim, Mexico City 07000, DF, Mexico
关键词
D O I
10.1021/jo0012647
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A general, efficient, and conceptually new approach to the total syntheses of marine-derived indole alkaloids, including (+/-)-flustramines A (I) and B (2), (+/-)-flustramides A (3) and B (4), and (+/-)-debromoflustramine B (5), is outlined. The key step in the syntheses involves the conjugated addition of an organomagnesium species derived from prenyl bromide to 2-hydroxyindolenines. Compounds 1. 2, and 5 have been synthesized in five steps with 23%, 17%, and 16% overall yield, respectively, whereas flustramides 3 and 4 have been synthesized in only four steps with 24% and 18% overall yield, respectively, on the basis of 2-hydroxyindolenines.
引用
收藏
页码:1186 / 1192
页数:7
相关论文
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