[H]OC1=C(OC([H])([H])[H])C([H])=C(C([H])=C1[H])C([H])([H])C([H])([H])C(=O)C([H])([H])[C@@]([H])(O[H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H]