CC(C)(C=C)C1=CC2=C(OC(C)(COS(O)(=O)=O)C=C)C3=C(OC(C)(C)C=C3)C(OC3=C4C=C(C(=O)OC4=C(C4=C3C=CC(C)(C)O4)C(C)(C)C=C)C(C)(C)C=C)=C2OC1=O