CC1(C)CCC[C@@]2(C)C1CC[C@]1(C)C2C[C@@H](O)[C@@]2(C)C1C[C@H](O)C1COC(=O)[C@@H]12	(1R,4S,9S,10S,11R,14S)-4,11-dihydroxy-1,10,14,18,18-pentamethyl-7-oxapentacyclo[11.8.0.0^{14,19}.0^{2,10}.0^{5,9}]henicosan-8-one