The synthesis of cholestan saponin derivatives and furostan saponin derivatives Using natural product diosgenin as raw material,three cholestan derivatives were synthesized via a concise and efficient route.

Biodistribution and hepatoctyes targeting of cationic liposomes surface-modified with sterylglucoside and golyethylene glycol;

Synthesis of bisdesmosidic furostanol saponins bearing trisaccharide chains with anti-inflammatory activity;

The 3 β O tert butyldiphenylsilyl 26 acetoxy cholestan 5(6) ene 16,22 dione,a key intermediate of furostanol saponin,was synthesized from diosgenin in three steps by the literature method in 52% overall yield.