Isolation and Identification of the Chemical Constituents of Gynura divaricata (L.) DC

Nine compounds were isolated from Gynura divaricata(L.) DC and identified as kaempferol-3-O-α-L-rhamnopyranoside(1),quercetin-3-O-α-L-rhamnopyranoside(2),caryolane-1,9β-diol(3),eudesm-4(14)-ene-3α,11-diol(4),ferulic acid(5),pinoresinol-4-O-β-Dglucopyranoside(6),scopoletin(7),zingerone-4-O-β-D-glucopyranoside(8) and dihydro-4-hydroxy-5,5-dimethylfurun-2(3H)-one(9),by analysis of chemical evidence and spectroscopic data.All compounds were isolated from the genus Gynura except for compound 2.