Studies On The Bioactive Constituents Of Ardisia Gigantifolia Stapf

Using in Vitro tumour cell bioassay (MTT based) to search bioactive compo unds, 17 compounds from Ardisia gigantifolia Stapf were obtained, and 14 of them were elucidated on the basis of physicochemical and spectral methods.The nine new compounds were established as: 3β-O-{α-L-rhamnopyranosyl-(1→3)-[β-D-xylopyranosyl-(1→2)]-β-D-galactopyranosyl-(1→4)-[β-D-glucopyran osyl- (1→2)]- α-L- arabinopyranoside }-16α-hydroxy- 13,28- epoxy -oleanane (2), cyclamiretin A 3β-O-α-L-rhamnopyranosyl-(1→3)-[β-D-xylopyranosyl-(1→2)] -β -D-galactopyranosyl-(1→4)-[β-D-glucopyranosyl-(1→2)]-α-L-arabinopyranoside (3), 3β-O-{α-L-rhamnopyranosyl-(1→3)-[β-D-xylopyranosyl-(1→2)]-β-D-gala ctopyranosyl-(1→4)- [β-D-glucopyranosyl-(1→2)] -α-L-arabinopyranoside} -16α-h ydroxy-13,28-epoxy-30-acetoxyoleane(4), cyclamiretin A 3β-O-α-L-rhamnopy ranosyl-(1→3)-[β-D-glucopyranosyl-(1→4)-β-D-xylopyranosyl-(1→2)]-β-D-galac topyranosyl-(1→4)-[β-D-glucopyanosyl-(1→2)]-α-L-arabinopyranoside(5), 3β-O-{α-L-rhamnopyranosyl-(1→3)-[β-D-glucopyranosyl-(1→4)-β-D-xylopyranosyl-(1 →2)]-β-D-galactopyranosyl-(1→4)-[β-D-glucopyranosyl-(1→2)]-α-L-arabinopyra noside}-16α-hydroxy-13,28-epoxy-oleanane(6), cyclamiretin A 3β-O-α-L-rhamno pyranosyl-(1→3)-[β-D-xylopyranosyl-(1→2)]-β-D-galactopyranosyl-(1→4)-[β-D-6-O-acetylglucopyranosyl-(1→2)]-α-L-arabinopyranoside(8), 3β-O-{α-L-rhamno pyranosyl-(1→3)-[β-D-xylopyranosyl-(1→2)]-β-D-galactopyranosyl-(1→4)-[β-D-...