52942-64-0
diethyl (2Z)-2-(ethoxymethylidene)-3-oxobutanedioate
→
77936-73-3
diethyl 3-cyanopyrazolo[1,5-a]pyrimidine-6,7-dicarboxylate
77936-69-7
diethyl 2-(((4-cyano-1H-pyrazol-5-yl)amino)methylene)-3-oxosuccinate