R. Sankaranarayanan et al., 5-Amino-4-(4-methoxyphenyl)-2-phenyl-7-(pyrrolidin-1-yl)-1,6-naphthyridine-8-carbonitrile, ACT CRYST C, 55, 1999, pp. 1670-1672
In the crystal of the title compound, C26H23N5O, there are two independent
molecules in the asymmetric unit. The naphthyridine moiety in both molecule
s is slightly folded. The dihedral angles between the fused pyridine rings
in the molecules are 5.7(1) and 8.2(1)degrees, respectively. The pyrrolidin
e ring in both molecules adopts a half-chair conformation. The molecular st
ructure is stabilized by a C-H ... N-type intramolecular hydrogen bond with
in the two molecules in the asymmetric unit and the packing is stabilized b
y intermolecular N-H ... O hydrogen bonds.