Kopsiyunnanines L and M, Strychnos-related monoterpenoid indole alkaloids from Yunnan Kopsia arborea

Mariko Kitajima,Maiko Nakazawa,Yuqiu Wu,Noriyuki Kogure,Rongping Zhang,Hiromitsu Takayama

Tetrahedron（2016）

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摘要

Two new indole alkaloids having unusual skeletons were isolated from Yunnan Kopsia arborea. Kopsiyunnanine L has a novel 2,3,4,5-tetrahydro-1H-benzazepine skeleton rearranged from a Strychnos-type monoterpenoid indole alkaloid. Kopsiyunnanine M is a new type of bisindole alkaloid consisting of two Strychnos-type alkaloids.

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关键词

Alkaloid,Indole,Bisindole,Kopsia,Structure elucidation

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