作者:Heejung Yang、Hyun-Jong Cho、So Hee Sim、Young Keun Chung、Dae-Duk Kim、Sang Hyun Sung、Jinwoong Kim、Young Choong Kim
DOI:10.1016/j.bmcl.2012.01.010
日期:2012.3
Bioassay-guided fractionation of an 80% MeOH extract of Juglan sinensis leaves and twigs has resulted in the isolation of three new triterpenes (1-3) and two new sesquiterpenes (4-5) along with two known sesquiterpenes (6-7). The new compounds were determined to be 3 beta, 11 alpha, 19 alpha, 24, 30-pentahydroxy-20 beta, 28-epoxy-28 beta-methoxy-ursane (1), 1 alpha, 3 beta-dihydroxy-olean-18-ene (2), 2 alpha, 3 alpha, 23-trihydroxy-urs-12-en-28-oic acid 28-O-beta-D-glucopyranoside (3), (4S, 5S, 7R, 8R, 14R)-8, 11-dihydroxy-2, 4-cyclo-eudesmane (4), 15-hydroxy-alpha-eudesmol-11-O-beta-D-glucopyranoside (5), by spectroscopic analysis. The cytotoxicity of compounds (1-7) against four cancer cell lines such as B16F10, Hep-2, MCF-7 and U87-MG was evaluated. Compounds 1, 2, 6 and 7 showed potent cytotoxicity against all of four cancer cell lines, respectively. (C) 2012 Elsevier Ltd. All rights reserved.