OC1=CC=C(C=C1)[C@@H]1OC2=CC=C(\C=C\C3=CC4=C(C(C(O4)C4=CC=C(O)C=C4)C4=CC(O)=CC(O)=C4)C(O)=C3)C=C2[C@@H]1C1=CC(O)=CC(O)=C1