两种新的苯甲酮糖苷类化合物从番石榴的果实中分离得到。

Two new benzophenone glycosides from the fruit of Psidium guajava L.

机构信息

MOE Key Laboratory for Standardization of Chinese Medicines, Institute of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Cai Lun Road 1200, Zhangjiang, Shanghai 201203, China.

出版信息

Fitoterapia. 2010 Sep;81(6):532-5. doi: 10.1016/j.fitote.2010.01.014. Epub 2010 Jan 18.

DOI:10.1016/j.fitote.2010.01.014

PMID:20080158

Abstract

The ripe edible fruits of Psidium guajava L. was phytochemically investigated, three benzophenone glycosides, 2, 6-dihydroxy-3, 5-dimethyl-4-O-beta-D-glucopyranosyl-benzophenone (1), 2, 6-dihydroxy-3-methyl-4-O-(6''-O-galloyl-beta-D-glucopyranosyl)-benzophenone (2), 2, 6-dihydroxy-3, 5-dimethyl-4-O-(6''-O-galloyl-beta-D-glucopyranosyl)-benzophenone (3) were isolated by means of chromatography, and their structures were elucidated on the basis of mass spectrometry, (1)H NMR, (13)C NMR, HSQC and HMBC data. Compounds 1 and 2 were new benzophenone glycosides, and here we report the complete spectroscopic assignments for 3.

摘要

番石榴成熟可食用的果实经植物化学研究，分离得到三种苯甲酮糖苷：2,6-二羟基-3,5-二甲基-4-O-β-D-吡喃葡萄糖基苯甲酮（1）、2,6-二羟基-3-甲基-4-O-(6”-O-没食子酰基-β-D-吡喃葡萄糖基）-苯甲酮（2）、2,6-二羟基-3,5-二甲基-4-O-(6”-O-没食子酰基-β-D-吡喃葡萄糖基）-苯甲酮（3）。通过色谱法进行分离，并基于质谱、（1）H NMR、（13）C NMR、HSQC 和 HMBC 数据阐明了它们的结构。化合物 1 和 2 为新型苯甲酮糖苷，本文报道了化合物 3 的完整光谱归属。