Triterpene glycosides from antarctic sea cucumbers. 2. Structure of achlioniceosides A1, A2, and A3 from the sea cucumber Achlionice violaecuspidata (Rhipidothuria racowitzai). - Antonov,A.S.; Avilov,S.A.; Kalinovsky,A.I.; Anastyuk,S.D.; Dmitrenok,P.S.; Kalinin,V.I.; Taboada,S.; Bosh,A.; Avila,C.; Stonik,V.A. (J Nat Prod, 2009)