In the title compound, C17H22ClN3O2, the aromatic fused ring system and the amide group are close to being coplanar [dihedral angle = 14.66 (16)degrees]. Thus, the amide NH group is sterically blocked from forming a hydrogen bond by the pendant ethyl substituent of the adjacent five-membered ring. The NH group of the five-membered ring makes an intermolecular N-H center dot center dot center dot O bond, resulting in centrosymmetric dimers of molecules containing R-2(2)(10)loops.
|Number of pages||11|
|Journal||Acta Crystallographica Section E: Structure Reports Online|
|Publication status||Published - 1 Aug 2007|