CC(=O)CC(=O)\C=C\CC1(C)CCC2=C(C)C(O)=C(C)C(C)=C2O1.CC(=O)OC1=C(C)C(C)=C2OC(C)(C\C=C\C(=O)CC(=O)\C=C\CC3(C)CCC4=C(C)C(OC(C)=O)=C(C)C(C)=C4O3)CCC2=C1C