SAR analysis revealed that the anti-proliferative activity of the xanthones is substantially influenced by the position and number of attached hydroxyl and prenyl groups, and the presence of hydroxyl group ortho to the carbonyl function of xanthone scaffold contributes significantly to their cytotoxicity. The new prenylatedxanthone 20 with a relatively simple structure, namely 1,3,8-trihydroxy-2-prenylxanthone
Regiospecific Prenylation of Hydroxyxanthones by a Plant Flavonoid Prenyltransferase
作者:Ruishan Wang、Ridao Chen、Jianhua Li、Xiao Liu、Kebo Xie、Dawei Chen、Ying Peng、Jungui Dai
DOI:10.1021/acs.jnatprod.6b00417
日期:2016.8.26
prenyltransferase with substrate flexibility from Morus alba, is demonstrated. Among the enzymatic products, 2-dimethylallyl-1,3,7-trihydroxyxanthone (3a) effectively attenuated glutamate-induced injury in SK-N-SH neuroblastoma cells. These results suggest a potential approach for the synthesis of bioactive prenylated xanthones by a substrate-relaxed flavonoid prenyltransferase.