Crystal structure and Hirshfeld surface analysis of ethyl 2-amino-4-(4-chloro-phen-yl)-5,6,7,8,9,10-hexa-hydro-cyclo-octa-[b]pyridine-3-carboxyl-ate.

In the title compound, C20H23ClN2O2, the cyclo-octene ring has a boat-chair conformation. The ethyl formate moiety is equally disordered over two positions. The dihedral angle between the pyridine and chloro-phenyl rings is 81.33 (13)°. An intra-molecular N-H⋯O hydrogen bond helps to stabilize the mol-ecular conformation. In the crystal, N-H⋯N hydrogen-bonding leads to the formation of dimers with an R 2 2(8) graph-set motif. Additional consolidation of the packing in the crystal is achieved through C-H⋯π and π-π stacking inter-actions. The inter-molecular inter-actions were qu-anti-fied and analysed using Hirshfeld surface analysis, revealing that H⋯H inter-actions contribute by far the most to the crystal packing (63.6%).