(2008/06/13)
ethyl 5-amino-1H-pyrazole-4-carboxylate
2-(4-nitrophenyl)-3-dimethylaminoprop-2-enenitrile
7-amino-6-(4-nitro-phenyl)-pyrazolo[1,5-a]pyrimidine-3-carboxylic acid ethyl ester
7-amino-6-(4-amino-phenyl)-pyrazolo[1,5-a]pyrimidine-3-carboxylic acid ethyl ester
dichlorobenzenesulfonyl chloride