[2-oxo-2-(2-oxocyclopentyl)ethyl] acetate

[2-[[3-[(2-乙酰氧基乙酰基)氨基]-2-氯-5-氰基苯基]氨基]-2-氧代乙基]乙酸酯

2-(甲基苯基氨基)-2-氧代乙基乙酸酯

[2-oxo-2-[2-(prop-2-ynylcarbamoyl)anilino]ethyl] acetate

acetic acid,(2-hydroxyacetyl) 2-hydroxyethaneperoxoate