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