A NEW STEROIDAL SAPONIN FROM THE BULBS OF LILIUM LANCIFOLIUM

AIMTo investigate the chemical constituents of the bulbs of Lilium lancifoliumThunb.. METHODSVarious chromatographic techniques were used to isolate the chemical constituents. MALDI-TOF-MS, HR-SI-MS, IR, 1HNMR, ₁₃CNMR, DEPT, 1H-1H COSY, HMQC and HMBC were used to determine the structures of the isolated constituents. RESULTSOphiopogonin D′ and lililancifoloside A were isolated from the bulbs of Lilium lancifolium Thunb., and were identified as diosgenin 3-O-O-α-L-rhamnopyranosyl-(1→2)-O-［β-D-xylopyranosyl(1→3)］-β-D-glucopyranoside and diosgenin 3-O-O-α-L-rhamnopyranosyl-(1→2)-O-［α-L-arabinopyranosyl(1→3)］-β-D-glucopyranoside, respectively. CONCLUSIONOphiopogonin D′ was isolated from the bulbs of Lilium lancifolium Thunb. for the first time. Lililancifoloside A is a new steroidal saponin.