STUDY ON THE CHEMICAL CONSTITUENTS OF THE ROOTS OF PSEUDERANTHEMUM PALA TIFERUM (NEES) RADLK. (ACANTHACEAE)

Abstract

The roots of Pseuderanthemum palatiferum (Nees) Radlk. (Acanthaceae) has been used asa traditional medicine for treating of inflammation and digestive troubles in Vietnam. Firststudies have shown that extracts from the roots of this plant had antibacterial and antifungalactivities. We report here the isolation and determination of four triterpenes: lupeol, lupenone,betulin, pomolic acid and dipeptide asperglaucide from the roots of Pseuderanthemumpalatiferum (Nees) Radlk. Structures of these compounds have been elucidated by means ofspectroscopic methods such as MS, 1 D and 2D NMR.