Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 5 (May 2013)

organic compounds

Acta Cryst. (2013). E69, o785    [ doi:10.1107/S1600536813009951 ]

Diethyl 4-(2-meth­oxy­phen­yl)-2,6-di­methyl-1,4-di­hydro­pyridine-3,5-di­carboxyl­ate

K. Wang, Y. Wang, M. Yao and D. Xu

Abstract: In the title compound, C20H25NO5, the di­hydro­pyridine ring adopts a flattened boat conformation. The meth­oxy­phenyl ring is almost perpendicular to the mean plane of the pyridine ring [dihedral angle = 88.42 (3)°]. The two carbonyl units adopt a synperiplanar conformation with respect to the double bonds in the di­hydro­pyridine ring. In the crystal, mol­ecules are connected by N-H...O hydrogen bonds into R44(24) tetra­meric rings. A region of disordered electron density, located at the center of four adjacent mol­ecules, was treated with the SQUEEZE routine in PLATON [Spek (2009). Acta Cryst. D65, 148-155]. It is probably the result of traces of the solvent of crystallization and was not taken into account during the structure refinement.

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