[H]C1=C([H])C2=C(N(C(=O)C3=C([H])C(OC([H])([H])[H])=C([H])C(OC([H])([H])[H])=C23)C([H])([H])[H])C2=C([H])C3=C(OC([H])([H])O3)C([H])=C12