51559-52-5
2-dimethylaminomethylene-3-oxobutyric acid methyl ester
+
7400-27-3
叔丁基肼盐酸盐
→
~68%
950858-97-6
methyl 1-tert-butyl-5-methylpyrazole-4-carboxylate
4637-24-5
N,N-二甲基甲酰胺二甲基缩醛
105-45-3
乙酰乙酸甲酯