Some chemical constituens of the bark extracts of Bombax malabaricum.

Abstract

Air-dried bark of Bombax malabaricum (6 kg) was extracted with MeOH, the crude MeOH extract was further extracted with hexane, chloroform and n-BuOH, respectively. After purification by column chromatography, five components were obtained. These components were a mixture of long chain aliphatic hydrocarbons (C27-33), beta-sitosterol, beta-sitosteryl-3-O-D-glucopyranoside, Lupeol and 2-hydroxy-2-methyl propanoic acid, ethyl ester. The structure of the compounds were established on the basis of physical properties, chemical reactions and spectroscopic data.