[H]OC1=C(OC([H])([H])[H])C([H])=C([H])N=C1C(=O)N([H])[C@]1([H])C(=O)O[C@@]([H])(C([H])([H])[H])[C@@]([H])(OC(=O)[C@@]([H])(C([H])([H])[H])C([H])([H])C([H])([H])[H])[C@]([H])(C(=O)OC1([H])[H])C([H])([H])C1=C([H])C([H])=C([H])C([H])=C1[H]