Synonyms: D(17a)-Homo-C,18-dinordammara-8,24-dien-26-oicacid, 17a-hydroxy-17a-methyl-3-oxo-, (13a,17ab,24Z)-; (+)-Neokadsuranic acid C; 2-Heptenoic acid,2-methyl-6-(2,3,4,4a,5,6,6b,7,8,9,10,10a,11,11b-tetradecahydro-10-hydroxy-4,4,6b,10,11b-pentamethyl-3-oxo-1H-benzo[a]fluoren-9-yl)-,[4aR-[4aa,6ba,9b(2Z,6R*),10b,10aa,11bb]]-; Neokadsuranic acid C