[H]OC1=C([H])C2=C(C(=O)C3=C(O[H])C(=C(O[H])C([H])=C3C2=O)[C@@]([H])(OC([H])([H])[H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H])C(O[H])=C1Cl