5-溴-5-乙基-1-苯基-嘧啶-2,4,6-三酮

3-ethyloxolan-2-one

3-ethyl-1-methyl-4-oxoquinolin-2-olate

2,4,6-三氯-5-乙基嘧啶

异丙基丙二酸二乙酯