1-Phenyl-6,7,8,9-hexa­hydro-1H,5H-cyclo­hepta­[1′,2′:2,3]pyrido[6,5-c]pyrazol-4-amine: a new tacrine analogue

The title compound, C17H18N4, contains a pyrazolopyridine system fused with a seven-membered carbocyclic ring. The pyrazole ring is coplanar with the pyridine ring, while the phenyl ring is twisted by a dihedral angle of 14.38 (14)° with respect to the pyridine ring. The seven-membered ring displays a chair conformation. The packing is stabilized by N—H⋯N hydrogen bonds and N—H⋯π(arene) inter­actions