title: N-{4-[3-(4-Fluoro-phen-yl)pyrido[2,3-b]pyrazin-2-yl]-2-pyrid-yl}isopropyl-amine.
abstract: In the crystal structure of the title compound, C(21)H(18)FN(5), the pyridopyrazine ring system forms dihedral angles of 33.27 (7) and 48.69 (9)° with the 4-fluoro-phenyl and pyridine ring, respectively. The dihedral angle of the 4-fluoro-phenyl and pyridine rings is 57.45 (8)°. The crystal packing is characterized by an inter-molecular N-H⋯N hydrogen bond.
authors.forename: Pierre
authors.initials: P
authors.lastname: Koch
authors.forename: Dieter
authors.initials: D
authors.lastname: Schollmeyer
authors.forename: Stefan
authors.initials: S
authors.lastname: Laufer