The structures of six antifungal oligoglycosides, stichlorosides A1,A2,B1,B2,C1, and C2, from the sea cucumber Stichopus chloronotus (Brandt).

Abstract

Chemical structures are reported for six antifungal lanostane-type triterpene-oligoglycosides from the Okinawan sea cucumber Stichopus chloronotus (BRANDT). The compounds are : stichlorosides A1 (9), B1 (15), C1 (20) [having stichlorogenol (3) as the aglycone] and A2 (10), B2 (16), C 2 (21) [dehydrostichlorogenol (4) as the aglycone].