[H]OC1=C2C(=C([H])C([H])=C1[H])C(=O)N1C(=O)C([H])([H])[C@]3([H])O[C@]21O[C@@]([H])([C@@]([H])(C(=O)C1=C([H])C([H])=C([H])N1[H])C([H])([H])[H])[C@@]([H])(C([H])([H])[H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[C@@]3([H])C([H])([H])[H]