[H]ON1C2=C(O[H])C([H])=C([H])C(=C2N=C2C(=O)C([H])=C([H])C(=C12)C([H])([H])C([H])=C(C([H])([H])[H])C([H])([H])[H])C([H])([H])C([H])=C(C([H])([H])[H])C([H])([H])[H]