OBJECTIVETo study the chemical constituents of the twigs of Garcinia xipshuanbannaensis.

METHODThe compounds were isolated by column chromatography with silica gel, RP-18 and Sephadex LH-20, and their structures were elucidated by spectroscopic analysis.

RESULTFifteen compounds were obtained and identified, which were bannaxanthone E (1), xanthochymol (2), isoxanthochymol (3), cycloxanthochymol (4), osajaxanthone (5), gentisein (6), mangostinone (7), kaempferol (8), quercetin (9), vitexin (10), 2"-O-acetylvitexin (11), 3-acetoxyoleanolic acid (12), (-)-epicatechin (13), beta-sitosterol (14) and daucosterol (15), respectively.

CONCLUSIONCompounds 4-9 and 11-13 were isolated from the plant and compounds 11-13 were obtained from the genus Garcinia for the first time.

Drugs, Chinese Herbal ; chemistry ; isolation & purification ; Garcinia ; chemistry ; Plant Stems ; chemistry

Twelve compounds were separated from stems of Dysoxylum laxiracemosum and their structures were identified by spectrum analysis as shoreic acid (1), cabraleahydroxylactone (2), cabralealactone (3), cinchonain (5), catechin (6), scopoletin (7), vanillic acid (8), p-hydroxybenzoic acid (9), docosanol (10), beta-sitosterol (11), daucosterol (12). Of them, compounds 1-6,8-12 were separated from this plant for the first time, and compounds 4-6 were reported from this plant genus for the first time.
Catechin ; chemistry ; Meliaceae ; chemistry ; Plant Stems ; chemistry ; Scopoletin ; chemistry ; Sitosterols ; chemistry ; Vanillic Acid ; chemistry