来自多香果浆果的酚糖苷。

Phenolic glycosides from berries of Pimenta dioica.

作者信息

Kikuzaki Hiroe, Miyajima Yoshiko, Nakatani Nobuji

机构信息

Division of Food and Health Sciences, Graduate School of Human Life Science, Osaka City University, Sumiyoshi, Osaka, Japan.

出版信息

J Nat Prod. 2008 May;71(5):861-5. doi: 10.1021/np0705615. Epub 2008 Mar 4.

DOI:10.1021/np0705615

PMID:18314960

Abstract

Four new phenolic glycosides, (2-hydroxy-3-methoxy-5-allyl)phenyl beta- d-(6-O-E-sinapoyl)glucopyranoside (1), (1' R,5' R)-5-(5-carboxymethyl-2-oxocyclopentyl)-3 Z-pentenyl beta-D-(6-O-galloyl)glucopyranoside (2), (S)-alpha-terpinyl [alpha-L-(2-O-galloyl)arabinofuranosyl]-(1-->6)-beta-D-glucopyranoside (3), and (R)-alpha-terpinyl [alpha-L-(2-O-galloyl)arabinofuranosyl]-(1-->6)-beta-D-glucopyranoside (4), were isolated from the berries of Pimenta dioica together with eight known flavonoids. The structures of 1-4 were elucidated on the basis of MS and NMR data and enzymatic hydrolysis. All four glycosides showed radical-scavenging activity against 1,1-diphenyl-2-picrylhydrazyl (DPPH) radicals.

摘要

从多香果的浆果中分离出四种新的酚苷，即(2-羟基-3-甲氧基-5-烯丙基)苯基β-D-(6-O-E-芥子酰基)吡喃葡萄糖苷(1)、(1'R,5'R)-5-(5-羧甲基-2-氧代环戊基)-3Z-戊烯基β-D-(6-O-没食子酰基)吡喃葡萄糖苷(2)、(S)-α-萜品基[α-L-(2-O-没食子酰基)阿拉伯呋喃糖基]-(1→6)-β-D-吡喃葡萄糖苷(3)和(R)-α-萜品基[α-L-(2-O-没食子酰基)阿拉伯呋喃糖基]-(1→6)-β-D-吡喃葡萄糖苷(4)，同时还分离出八种已知的黄酮类化合物。根据质谱和核磁共振数据以及酶促水解对1-4的结构进行了阐明。所有四种苷对1,1-二苯基-2-苦基肼基(DPPH)自由基均表现出自由基清除活性。