[H]N1C(=O)[C@@]([H])(N(C(=O)[C@@]([H])(OC(=O)[C@@]([H])(N([H])C(=O)[C@]([H])(OC(=O)[C@]([H])(C([H])([H])[H])C1([H])[H])C([H])([H])C([H])(C([H])([H])[H])C([H])([H])[H])C([H])([H])C([H])(C([H])([H])[H])C([H])([H])[H])C([H])([H])C([H])(C([H])([H])[H])C([H])([H])[H])C([H])([H])[H])C([H])([H])C1=C([H])C([H])=C([H])C([H])=C1[H]