C/C=C(/CC[C@@H](C)[C@H]1CC[C@H]2[C@@H]3CC=C4C(O)(C(=O)OCC)C(=O)C[C@]4(C)[C@H]3CC[C@]12C)C(C)C	ethyl (3aR,3bS,5aR,6R,8aS,8bS)-1-hydroxy-3a,5a-dimethyl-2-oxo-6-[(Z,2R)-5-propan-2-ylhept-5-en-2-yl]-3,3b,4,5,6,7,8,8a,8b,9-decahydroindeno[5,4-e]indene-1-carboxylate