1.
Acta Crystallogr Sect E Struct Rep Online
; 65(Pt 10): o2476-7, 2009 Sep 16.
Article
in English
| MEDLINE
| ID: mdl-21577928
ABSTRACT
In the title compound, C(18)H(16)N(4)O(2), the plane defined by the ethyl C atoms and the attached N atom is inclined to the adjacent pyridine ring at an angle of 67.87â (16)°. The dihedral angle between the two heterocyclic rings is 3.33â (16)°. The mol-ecular conformation is stabilized by an intra-molecular N-Hâ¯O hydrogen bond and the crystal structure by inter-molecular C-Hâ¯O hydrogen bonds, forming a one-dimensional structure.