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High-resolution Tandem Mass Spectrometry for Studying Chemical Constituents of Gynura bicolor DC
Published on: February 2, 2024
[Study on chemical constituents from stem of Mallotus apelta]
Xiaoman Qi1, Yiping Yang, Yang Ye
1State Key Laboratory of Drug Research, Shanghai Institute of Materia Medicine, Shanghai Institute of Biological Sciences, Chinese Academy of Sciences, Shanghai 201203.
Abstract:
Eight compounds were isolated from the ethyl-acetate extract of the stem of Mallotus apelta Muell. -Arg. The structures of eight compounds were identified by means of spectroscopic analysis as 12-ursen-3-one (I), 3-hydroxy-12-ursen (II), mussaenoside (III), 6-methoxy-2H-1-benzopyron4-one (IV), ursolic acid (V), acetyl aleuritolic acid (VI), beta-sitosterol-3-O-beta-D-glucopyranoside (daucosterol VII), beta-sitosterol (VII). Compound I to approximately V were obtained from this plant for the first time.