14273-42-8
ethyl 2-(2-methyl-6-oxo-1H-pyrimidin-5-yl)acetate
→
~95%
14273-76-8
乙基 (4-chloro-2-methylpyrimidin-5-yl)乙酸酯
123-25-1
丁二酸二乙酯
5472-38-8
甲酸基丁二酸二乙酯