COC1=CC(\C=C\C(=O)OC2C(C)OC(OCC3OC(OC(C)(CC\C=C(/C)CCC=C(C)C)C=C)C(OC4OC(C)C(OC5OC(C)C(O)C(O)C5O)C(O)C4O)C(O)C3O)C(O)C2O)=CC=C1O