2-(3-溴-6-甲基-2-吡嗪酮-1(2H)-基)乙酸乙酯

Ethyl (3-hydroxy-6-methyl-2-oxo-2H-pyrazin-1-yl)-acetate

3-CHLORO-1-ETHOXYCARBONYLMETHYL-6-METHYLPYRAZINONE