C[C@@H]1CC[C@H](Br)[C@]23O[C@H]2C[C@@H]2[C@@H](C2(C)C)[C@@]13C	(1R,3S,5R,7S,8R,9R,12S)-12-bromo-6,6,8,9-tetramethyl-2-oxatetracyclo[6.4.0.01,3.05,7]dodecane