CC(C)=CCC1=C(O)C=CC(C(=O)C2C(CC(C)=CC2C2=C3OC(=C(CC=C(C)C)C(=O)C3=C(O)C=C2O)C2=C(O)C=C(O)C=C2)C2=C(O)C=C(O)C=C2)=C1O