356102-30-2
3-methoxycarbonylhydrazonoacetic acid ethyl ester
→
~78%
18212-20-9
4-甲基-1,2,3-噻重氮-5-羧酸乙酯
50981-14-1
3-ethoxycarbonylhydrazonoacetic acid ethyl ester
~62%
5982-65-0
Acetoacetic acid, ethyl ester, semicarbazone
141-97-9
乙酰乙酸乙酯
+
4114-31-2
肼基甲酸乙酯