Two new steroidal sapogenins from (synonym ) rhizomes and their antifungal activity.

Two novel acylated steroidal sapogenins, 3-acetoxy-1, 2, 4, 5, 7-pentahydroxy-spirost-25(27)-en-6-one () and (25S)-3-acetoxy-1, 2, 4, 5, 7-pentahydroxyspirostan-6-one (), together with two known steroidal sapogenins ( and ), were isolated from rhizomes. Their structures were elucidated by nuclear magnetic resonance (NMR) and mass spectrometry (MS) data. In addition, the antifungal activities of the isolated compounds against and were evaluated.