Try searching for...
SCFBio, IIT Delhi
Formula: C21H28O4 | Mol. Weight: 344.40 g/mol
IUPAC: (1R,8R,9S,10S)-3,4,8-trihydroxy-11,11-dimethyl-5-propan-2-yltetracyclo[7.5.2.01,10.02,7]hexadeca-2,4,6-trien-15-one
CC(C)C1=C(C(=C2C(=C1)C(C3CC(=O)C24C3C(CCC4)(C)C)O)O)O