Acta Cryst. (2009). E65, o2557 [ doi:10.1107/S1600536809038173 ]
Abstract: In the crystal structure of the title compound, C21H18FN5, the pyridopyrazine ring system forms dihedral angles of 33.27 (7) and 48.69 (9)° with the 4-fluorophenyl and pyridine ring, respectively. The dihedral angle of the 4-fluorophenyl and pyridine rings is 57.45 (8)°. The crystal packing is characterized by an intermolecular N-HN hydrogen bond.
Online 26 September 2009
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