122-51-0
原甲酸三乙酯
+
108-56-5
草酰乙酸二乙酯
→
~10%
52942-64-0
diethyl (2Z)-2-(ethoxymethylidene)-3-oxobutanedioate
26060-79-7
furo[3,4-d]pyrimidine-5,7-dione
16078-69-6
diethyl 2-phenylpyrazole-3,4-dicarboxylate
105151-39-1
5-乙基吡啶-2,3-二羧酸二乙酯
77936-73-3
diethyl 3-cyanopyrazolo[1,5-a]pyrimidine-6,7-dicarboxylate
62328-20-5
diethyl 2-aminopyrimidine-4,5-dicarboxylate