Received 14 October 2012
aInstitut National Polytechnique Félix HOUPHOUËT-BOIGNY, BP 1093, Yamoussoukro, Côte d'Ivoire,bOrganic Chemistry Department, Peoples' Friendship University of Russia, Miklukho-Maklaya St 6, Moscow, 117198, Russia, and cX-Ray Structural Centre, A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov St, B-334, Moscow 119991, Russian Federation
Correspondence e-mail: firstname.lastname@example.org
The title compound, C23H23NO, is the product of a tandem transformation of the double Mannich base bis(1-oxo-1,2,3,4-tertrahydro-2-naphthoylmethyl)amine hydrochloride in HBr solution upon heating. The tetrahydropyridine ring has a non-symmetrical half-chair conformation, whereas the cyclohexadiene and cyclohexene rings adopt non-symmetrical half-boat conformations. The dihedral angle between the planes of the terminal benzene rings is 62.85 (6)°. The N atom has a trigonal-pyramidal geometry [sum of the bond angles = 332.4 (3)°]. In the crystal, molecules form  chains via weak non-classical C-HN hydrogen bonds. The chains are stacked along the b axis.
For general background to the synthesis, chemical properties and probable applications in medicine (including computer program prognosis) of the title compound, see: Plati & Wenner (1949); Ellefson et al. (1978); Soldatenkov et al. (2009). For related compounds, see: Plati & Wenner (1950); Soldatenkov et al. (2008); Soldatova et al. (2010).
Data collection: APEX2 (Bruker, 2005); cell refinement: SAINT (Bruker, 2001); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: RK2383 ).
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Soldatenkov, A. T., Volkov, S. V., Polyanskii, K. B. & Soldatova, S. A. (2008). Chem. Heterocycl. Compd, 44, 630-631.
Soldatova, S. A., Soldatenkov, A. T., Kotsuba, V. E. & Khrustalev, V. N. (2010). Chem. Heterocycl. Compd, 46, 123-124.