Chemical Constituents of Gaultheria yunnanensis

Eleven compounds were isolated from the 95% ethanol extract of the whole plants of Gaultheria yunnanensis,which were identified to be kaempferol 3-O-α-L-rhamnopyranoside(1),guaijaverin(2),gaultheroside A(3),quercitrin(4),(-)-5′-methoxyisolariciresinol 9-O-β-D-xylopyranoside(5),schizandriside(6),(-)-epicatechin(7),isoquercitrin(8),cinchonain Ia(9),ursolic acid(10),and 2,5-bis(β-phenylethyl)phenol(11).Among them,1,2,9 and 11 were firstly obtained from the plant,and 2 was reported as natural compound at the first time.