STEROIDAL SAPONINS FROM THE BULBS OF LILIUM BROWNII

Article abstract of DOI:10.1016/0031-9422(90)83050-B

The methanol extract of the fresh bulbs of Lilium brownii has yielded a 27-acyloxyspirostanol saponin, named brownioside and a furospirostanol saponin, which appear to be new constituents.The respective structures have been shown by the spectroscopic evidence and alkaline- and acid-catalysed degradations to be (25R)-27-O-(3-hydroxy-3-methylglutaroyl)-spirost-5-en-3β,27-diol 3-O-<α-L-rhamnopyranosyl(1->2)>-β-D-glucopyranoside and (22S,25S)-26-O-β-D-glucopyranosyl-22,25-epoxyfurost-5-en-3β,26-diol 3-O<α-L-rhamnopyranosyl(1->2)>-β-D-glucopyranoside.Several known phenolic compounds have also been isolated and identified.