Synonyms: 2(5H)-Furanone,3-methyl-5-(2,3,5,6,9,10,11,12,13,14,15,17a,20,21-tetradecahydro-15-hydroxy-8,10,16,18-tetramethyl-9,12-epoxy-1H-benzo[2,3]cyclohexadeca[1,2-b]pyridin-19-yl)-,[9R-[7E,9R*,10R*,12R*,15S*,16E,17aS*,19(S*),21aR*]]-; (-)-Gymnodimine;Gymnodimine; Gymnodimine A