ANTHRAQUINONES FROM Morinda officinalis HOW. (RUBIACEAE) ROOTS, COLLECTED IN QUANG NINH PROVINCE,

Abstract

Investigation on the chemical constituents of methanol extract from roots of Morinda officinalis How. (Rubiaceae) has resulted in the isolation of three anthraquinones: anthragallol 2-methyl ether (1), physcion (2), and emodin (3). Their structures were determined by spectroscopic methods. All three compounds were isolated from Vietnamese Morinda officinalis for the first time