Acta Cryst. (2005). E61, o2074-o2075 [ doi:10.1107/S1600536805017800 ]
Abstract: The title compound, C19H16N4O3, was synthesized by the reaction of 5-amino-3-methyl-1-phenylpyrazole with 4-nitrobenzaldehyde and Medrum's acid in glycol under microwave irradiation. X-ray crystal structure analysis reveals that the dihydropyridine ring adopts a distorted half-chair conformation. In the crystal structure, the molecules exist as N-HO hydrogen-bonded dimers.
Online 10 June 2005
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