C/C1=C/C[C@@H]2O[C@@]2(C)CC/C=C(\C)CC[C@]23O[C@@]2(C)CO[C@@]3(O)C1	(1S,4E,8S,10S,12Z,15S,18S)-4,8,13,18-tetramethyl-9,16,19-trioxatetracyclo[13.4.0.0^{1,18}.0^{8,10}]nonadeca-4,12-dien-15-ol