[H]OC1=C(N=C([H])C([H])=C1OC([H])([H])[H])C(=O)N([H])[C@]1([H])C(=O)O[C@@]([H])(C([H])([H])[H])[C@]([H])(OC(=O)C([H])([H])C([H])(C([H])([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]