作者:Naonobu Tanaka、Yoshiki Kashiwada、Sang-Yong Kim、Michiko Sekiya、Yasumasa Ikeshiro、Yoshihisa Takaishi
DOI:10.1016/j.phytochem.2009.08.015
日期:2009.7
A xanthonolignoid, 2-O-demethylkielcorin, and a phenylxanthone, chinexanthone A, were isolated from stems of Hypericum chinense together with four known xanthonolignoids and seven known xanthones. Their structures were established by spectroscopic analysis, as their optical properties and absolute stereochemistry determined. The cytotoxicities of the isolated xanthone derivatives as well as additional
从金丝桃的茎中分离出一种 xanthonolignoid、2-O-demethylkielcorin 和一种苯基氧杂蒽酮、chinexanthone A,以及四种已知的 xanthonoligoids 和七种已知的氧杂蒽酮。它们的结构是通过光谱分析确定的,因为它们的光学性质和绝对立体化学被确定。还评估了分离的氧杂蒽酮衍生物以及另外 32 种氧杂蒽酮对一组人类癌细胞系的细胞毒性。