Chemical constituents of Cordia piauhiensis: Boraginaceae

Journal of the Brazilian Chemical Society

Renata Paiva Dos Santos²  Telma L. G. Lemos²  Otilia Deusdênia L. Pessoa²  Raimundo Braz-filho¹  Edson Rodrigues-filho¹  Francisco Arnaldo Viana¹  Edilberto R. Silveira² 

[1] ,Universidade Federal do Ceará Centro de Ciências Departamento de Química Orgânica e InorgânicaFortaleza CE ,Brazil

关键词: Cordia piauhiensis;    Boraginaceae;    triterpenes;    saponins;   

DOI  :  10.1590/S0103-50532005000400029

来源: SciELO

【 摘 要 】

A new monodesmoside triterpenoid saponin characterized as 3beta-O-alpha-L-rhamnopyranosyl-(1->2)-beta-D-glucopyranosyl pomolic acid, was isolated from Cordia piauhiensis Fresen (Boraginaceae). Its structure was determined by extensive NMR analysis, including ¹H, ¹H-COSY, HMQC, HMBC, and NOESY experiments. In addition, four known triterpenoids: quinovic acid, cincholic acid, cincholic 3beta-O-6-deoxy-beta-D-glucopyranoside acid and quinovic 3beta-O-beta-D-glucopyranoside acid were also isolated.

【 授权许可】

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