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The asymmetric unit of the title compound, C 19 H 19 N 3 O 4 , contains two mol­ecules with very few conformational differences; a C atom in the pyrimidine ring in one of the mol­ecules is disordered in a 0.688 (15):0.312 (15) ratio. In both mol­ecules, the fused pyridine and pyrimidine rings adopt half-chair conformations. The dihedral angles between the furan and benzene rings are 81.00 (13) and 84.99 (10)° in the two mol­ecules. The mol­ecular structure is consolidated by intra­molecular N—H⋯O hydrogen bonding. In the crystal, C—H⋯O hydrogen bonds connect the molecules into a three-dimensional network.

[6-(Furan-2-yl)-7-nitro-2,3,4,6,7,8-hexahydro-1H-pyrido[1,2-a]pyrimidin-9-yl](phenyl)methanone