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Updated: Jun 17, 2026

High-resolution Tandem Mass Spectrometry for Studying Chemical Constituents of Gynura bicolor DC
Published on: February 2, 2024
Chemical constituents from the stems of Diospyros maritima
Chi-I Chang1, Chiy-Rong Chen, Hsi-Lin Chiu
1Graduate Institute of Biotechnology, National Pingtung University of Science and Technology, Pingtung 912, Taiwan. changchii@mail.npust.edu.tw
Abstract:
A new phenolic, bis(6-hydroxy-2,3,4-trimethoxylphen-1-yl)methane (1) and a new butanedioate, butylmethyl succinate (2), along with twenty-nine known compounds including one naphthoquinone derivative, two chromanones, eight benzenoids, one lignan, one tocopherol, and sixteen triterpenoids were isolated from the stems of Diospyros maritima. epi-Isoshinanolone (3) was isolated in pure form for the first time. In addition, 5,7-dihydroxy-2-methylchomanone (4) was isolated from a natural source for the first time. Their structures were established on the basis of spectroscopic data as well as direct comparison with authentic samples.
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