7-oxo-2-phenyl-4,7-dihydro-pyrazolo[1,5-a]pyrimidine-5-carboxylic acid ethyl ester
7-oxo-2-phenyl-4,7-dihydro-pyrazolo[1,5-a]pyrimidine-5-carboxylic acid
3-phenylpyrazol-5-amine
diethyl 2-<<(3-phenyl-5-pyrazolyl)amino>methylen>propandioate
ethyl 4,7-dihydro-2-phenyl-7-oxopyrazolo<1,5-a>pyrimidin-6-carboxylate