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Note | Regular issue | Vol 78, No. 3, 2009, pp.763-770
Published online, 11th November, 2008
DOI: 10.3987/COM-08-11540
■ Chemical Constituents from the Leaves of Xylopia poilanei and Their Bioactivity

Tran Dinh Thang, Ping-Chung Kuo, Ngo Xuan Luong,* Nguyen Xuan Dung, Le Van Hac, Yao-Haur Kuo, Mei-Lin Yang, and Tian-Shung Wu*

*Department of Chemistry, National Cheng Kung University, 1, Ta-Shiueh Rd., Tainan 70101, Taiwan, R.O.C.

Abstract

A new flavonoid glycoside, xylopoillin A (1), and nine known compounds were isolated from the methanolic extracts of the leaves of Xylopia poilanei. The structure of this new compound was completely elucidated using a combination of 2D NMR techniques (COSY, NOESY, HMQC and HMBC) and HR-ESI-MS analyses. The other chemical structures of known compounds were identified by comparison of their spectroscopic and physical data with those reported in the literature.