Monoterpenoid indole alkaloids from Alstonia rostrata

Four new monoterpenoid indole alkaloids, alstrostines C-F together with thirteen known alkaloids were isolated from the leaves and twigs of Alstonia rostrata. All structures of new compounds were elucidated based on NMR, FTIR, UV, and MS spectroscopic data. Alstrostines C-E might originate from keto...

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Detalles Bibliográficos
Autores principales: Bao, Mei-Fen, Zeng, Chun-Xia, Qu, Yan, Kong, Ling-Mei, Liu, Ya-Ping, Cai, Xiang-Hai, Luo, Xiao-Dong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Berlin Heidelberg 2012
Materias:
Regular Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4131594/
http://dx.doi.org/10.1007/s13659-012-0019-y
Descripción
Sumario:Four new monoterpenoid indole alkaloids, alstrostines C-F together with thirteen known alkaloids were isolated from the leaves and twigs of Alstonia rostrata. All structures of new compounds were elucidated based on NMR, FTIR, UV, and MS spectroscopic data. Alstrostines C-E might originate from keto-enol tautomerism of preakummicine during biogenetic pathway of akummicine. [Image: see text] ELECTRONIC SUPPLEMENTARY MATERIAL: Supplementary material is available for this article at 10.1007/s13659-012-0019-y and is accessible for authorized users.

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