Chromone and chromanone glucosides from Hypericum sikokumontanum and their anti-Helicobacter pylori activities
作者:Naonobu Tanaka、Yoshiki Kashiwada、Tatsuro Nakano、Hirofumi Shibata、Tomihiko Higuchi、Michiko Sekiya、Yasumasa Ikeshiro、Yoshihisa Takaishi
DOI:10.1016/j.phytochem.2008.11.006
日期:2009.1
Chromone glucosides, takanechromones A-C (1, 2 and S) and chromanone glucosides, named takanechromanones A and B (3 and 4), were isolated from the methanolic extracts of Hypericum sikokumontanum together with 27 known compounds. Their structures were established based on spectroscopic evidence. The isolated compounds and some chromone derivatives were assayed for antimicrobial activity against Helicobacter pylori and cytotoxicity against human cancer cell lines. (C) 2008 Elsevier Ltd. All rights reserved.