CC(C)[C@@]12CC[C@H](C)[C@@]34CC[C@@](C)(O)[C@@]3(O4)[C@@H]1O2 (1S,2R,4S,7S,8S,11R)-7,11-dimethyl-4-propan-2-yl-3,12-dioxatetracyclo[6.3.1.01,8.02,4]dodecan-11-ol