Abstract
In the title compound, C17H22ClN3O2, the aromatic fused ring system and the amide group are close to being coplanar [dihedral angle = 14.66 (16)°]. 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⋯O bond, resulting in centrosymmetric dimers of molecules containing R22(10) loops.
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