[H]OC1=C([H])C([H])=C(C([H])=C1O[H])C1=C([H])C(=O)C2=C(O[H])C(=C(O[H])C([H])=C2O1)C([H])([H])[C@@]1([H])C(=C([H])[H])C([H])([H])C([H])([H])C([H])([H])C1(C([H])([H])[H])C([H])([H])[H]