摘要:
                                An ethanolic extract (A001) of the leaves and twigs of Flacourtia indica (Burm.f.) Merr, was purified to give a new phenolic glycoside, 2-(2-benzoyl-beta-D-glucopyranosyloxy)-7-(1 alpha,2 alpha,6 alpha-trihydroxy-3-oxocyclohex4-enoyl)-5-hydroxybenzyl alcohol (1) together with poliothrysoside (2), catechin-15,6-e]-4 beta-(3,4-dihydroxyphenyl)dihydro-2(3H)-pyranone (3), 2-(6-benzoyl-beta-D-glucopyranosyloxy)-7-(1 alpha,2 alpha,6 alpha-trihydroxy-3-oxocyclohex-4-enoyl)-5-hydroxybenzyl alcohol (4), chrysoeriol-7-O-beta-D-glucopyranoside (5), and mururin A (6). Compound 6 significantly inhibited the in vitro growth of both a chloroquine-sensitive (3D7) and a chloroquine-resistant (K1) strain of Plasmodium falciparum. It forms a complex with hematin and inhibits beta-hematin formation, suggesting that this compound act on a heme polymerization target. (C) 2012 Elsevier Masson SAS. All rights reserved.