Author:
Vuong Nguyen Quoc,Hue Nguyen Thi,Hang Pham Thi,Nam Nguyen Hoang,Tuan Nguyen Le,Thanh Le Nguyen,Cuong Pham Van,Yen Duong Hai,Nhiem Nguyen Xuan,Tai Bui Huu,Kiem Phan Van
Abstract
Six urs-ketone triterpenes (1 - 6) and two flavonoids (7, 8) from the leaves of Sarcosperma kontumense Gagnep. ex Aubrév., were isolated. Their chemical structures were elucidated as 2α,3α,19α,23-tetrahydroxy-13,27-cyclours-11-en-28-oic acid (1), rotundic acid (2), euscaphic acid (3), ursolic acid (4), pomolic acid (5), jacoumaric acid (6), (+)-catechin (7), and (-)-epi-catechin (8), by spectroscopic analyses including ESI-MS, 1D and 2D NMR spectra and comparison with those reported in the literatures. In which, compounds 1, 2, 4, 6, and 8 were firstly isolated from the genus Sarcosperma.
Publisher
Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications)
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