For pharmacological evaluation, diethyl 3-oxo-1, 4-dimethyl-2-phenyl-1, 2, 6, 7-tetrahydro-3H-pyrazolo[4, 3-c]pyridine-6, 6-dicarboxylate was synthesized by the Bischler-Napieralski type of reaction, from diethyl 2-acetamido-2-[(2-methyl-5-oxo-1-phenyl-3-pyrazolin-3-yl)methyl] malonate.
