CC(C)=CCC1=CC(C2=C(C(=O)C3=CC4=C(O[C@@H]5[C@H]4COC4=C(CC=C(C)C)C(O)=CC=C54)C(CC=C(C)C)=C3O)C3=CC(O)=C(O)C(CC=C(C)C)=C3O2)=C(O)C=C1O