Chemical constituents from the stems of Diospyros maritima.
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.
Chang
Chi-I
CI
Graduate Institute of Biotechnology, National Pingtung University of Science and Technology, Pingtung 912, Taiwan. changchii@mail.npust.edu.tw
Chen
Chiy-Rong
CR
Chiu
Hsi-Lin
HL
Kuo
Chao-Lin
CL
Kuo
Yueh-Hsiung
YH
D002851:Chromatography, High Pressure Liquid; D029788:Diospyros / Q000737:chemistry*; D018547:Plant Stems / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization