Three new C-geranylated flavonoids from Paulownia catalpifolia T. Gong ex D.Y. Hong seeds with their inhibitory effects on xanthine oxidase

Publication date: April 2020Source: Phytochemistry Letters, Volume 36Author(s): Cheng-mei Xiao, Xian-hui Jia, Hong-fang Du, Huan-xin Zhao, Cheng-lin Du, Wen-zhao Tang, Xiao-jing WangAbstractThree new C-geranylated flavonoids named as paucatalinones L (1), M (2), and N (3) were isolated from the seeds of Paulownia catalpifolia T. Gong ex D.Y. Hong. Their structures were determined by means of UV, IR, MS, NMR and CD techniques. Among them, paucatalinone N (3) was the fifth C-geranylflavone derivative obtained from Paulownia genus, and its geranyl variation was firstly displayed in Paulownia C-geranylated flavonoids. Moreover, Compounds 1 and 3 showed good inhibitory effects on xanthine oxidase.Graphical abstract

Source: Phytochemistry Letters - February 21, 2020 Category: Chemistry Source Type: research