4,7-二氢-1,3-苯并噻唑-6(5H)-酮

甲胺

4-氧代庚二酸二乙酯

diethyl 3-bromo-4-oxoheptanedioate

ethyl 3-(5-(2-ethoxy-2-oxoethyl)thiazol-4-yl)propanoate