New indole alkaloid from Peschiera affinis (Apocynaceae).

Allana Kellen L Santos,Luciana L Machado,Ayla Marcia C Bizerra,Francisco José Q Monte,Gilvandete M P Santiago,Raimundo Braz-Filho,Telma L G Lemos

NATURAL PRODUCT COMMUNICATIONS（2012）

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摘要

A new indole alkaloid of the pyridocarbazole type, named 6N-hydroxy-olivacine, and two known compounds, 2N-oxide-olivacine and olivacine, were isolated from roots of Peschiera affinis. The structures of the compounds were determined by spectroscopic {IR and extensive NMR (COSY, HMQC, HMBC and NOESY)} and EIMS analysis.

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关键词

Peschiera affinis,Apocynaceae,H-1 and C-13 NMR,6N-hydroxy-olivacine,2N-oxide-olivacine,olivacine

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