Abstract

Mangifera camptosperma is a perennial tree that belongs to the family Anacardiaceae, which is distributed in Vietnam, Thailand, and Myanmar. In Vietnam, M. camptosperma is called as “Xoai bui”, and this plant is cultivated for its edible fruit. A triterpenoid, 12-ursene- 2α,3β-diol (1), and two steroids, stigmastane-3,6- dione (2) and ergosterol peroxide (3), together with two phenylpropanoids, coniferaldehyde (4) and 4-acetonyl-3,5-dimethoxy-p-quinol (5), were isolated from the wood of n-hexane extract of Mangifera camptosperma. Their chemical structures were ehecidated by spectroscopic methods as well as comparing with data in the literature. These compounds were isolated for the first time from this plant.