5-Butylamino-6-(4-fluorophenyl)-7-oxo-1-p-tolyl-6,7-dihydro-1H-pyrazolo[4,3-d]pyrimidine-3-carbonitrile

In the title compound, C23H21FN6O, the dihedral angle between the fluorophenyl and pyrimidinone rings is 75.9 (1)°, and the dihedral angle between the methylphenyl and pyrazole rings is 40.3 (1)°. In the crystal structure, weak C—H...π(arene) and C—N...π(arene) interactions and intermolecular C—H...N and N—H...O hydrogen-bonding interactions are present