Try searching for...
SCFBio, IIT Delhi
Formula: C22H28O3 | Mol. Weight: 340.50 g/mol
IUPAC: (8S,9S,10R,13S,14S,17E)-17-(1-methoxyethylidene)-10,13-dimethyl-6,7,8,9,11,12,14,15-octahydrocyclopenta[a]phenanthrene-3,16-dione
CC(=C1C(=O)CC2C1(CCC3C2CCC4=CC(=O)C=CC34C)C)OC