Chemical constituents from Aspidosperma illustre (Apocynaceae)

Journal of the Brazilian Chemical Society

Lara F. Barbosa¹  Leda Mathias¹  Raimundo Braz-filho¹  Ivo J. Curcino Vieira¹ 

[1] ,Universidade Estadual do Norte Fluminense Darcy Ribeiro Laboratório de Ciências Químicas Campos dos Goytacazes RJ ,Brazil

关键词: Aspidosperma illustre;    Apocynaceae;    oleanane triterpenes;    alkaloids;   

DOI  :  10.1590/S0103-50532010000800004

来源: SciELO

【 摘 要 】

A new natural product oleanane-type triterpene, olean-12-ene-11α-methoxy-3β-acetate (10) was isolated from Aspidosperma illustre, together with β-amyrin (3), lupeol (4), β-amyrin acetate (5), lupeol acetate (6), olean-12-ene-28-hydroxy-3β-tetradecanoate (7), olean-12-ene-28-carboxy-3β-hexadecanoate (8), ursolic acid (9) triterpenes, and two monoterpenic indole alkaloids, β-yoimbine (1) and 1,2-dehydroaspidospermidine (2). These compounds were characterized on their spectral data basis, mainly one- (¹H, 13C, APT) and two-dimensional (¹H-¹H-COSY, ¹H-¹H-NOESY, HMQC and HMBC) NMR, and mass spectra, involving also comparison with data from the literature.

【 授权许可】

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