Isolation and identification of chemical constituents from leaves of Camellia pitardii Coh.St.

Objective To study the chemical constituents from leaves of Camellia pitardii Coh.St..Methods The compounds were isolated by chromatography on silica gel column,Sephadex LH-20 and identified on the basis of physico-chemical constants and spectral analysis.Results Eleven compounds were isolated and identified as quercetin(1),rutin(2),quercetin-3-O-α-D-arabinofurnoside(3),quercetin-3-O-β-D-galactopyranoside(4),quercetin-3-O-β-D-rhamnoside(5),kaempferol(6),kaempferol-3-O-[2″,6″-di-(E)-p-coumaroyl]-β-D-glucopyranoside(7),lupeol(8),oleanolic acid(9),3,4-dihydroxybenzoic acid(10),ethyl gallate(11).Conclusions Compounds 111 are all isolated from leaves of Camellia pitardii Coh.St.for the first time.Compound 7 is isolated from Camellia genus plants for the first time.