Eryvarins F and G, two 3-phenoxychromones from the roots of Erythrina variegata.

作者信息

Tanaka Hitoshi, Hirata Miyuki, Etoh Hideo, Shimizu Hiroshi, Sako Magoichi, Murata Jin, Murata Hiroko, Darnaedi Dedy, Fukai Toshio

机构信息

Faculty of Pharmacy, Meijo University, Yagoto, Tempaku-ku, Nagoya 468-8503, Japan.

出版信息

Phytochemistry. 2003 Apr;62(8):1243-6. doi: 10.1016/s0031-9422(02)00482-x.

DOI:10.1016/s0031-9422(02)00482-x

PMID:12648545

Abstract

Two 3-phenoxychromones, eryvarins F and G, were isolated from the roots of Erythrina variegata. Their structures were established to be 3-(2,4-dihydroxyphenoxy)-7-hydroxy-6,8-di(3,3-dimethylallyl)chromen-4-one and 3-(2,4-dihydroxyphenoxy)-8-(3,3-dimethylallyl)-2,2-dimethylpyrano[5,6:6,7]chromen-4-one on the basis of spectroscopic and chemical evidence. Eryvarins F and G are unusual 3-phenoxychromone derivatives with two isoprenoid groups.

摘要