Ji Xiao-Ling, Sun Wang-Bin, Zhang Qian, Cao Yan-Ping, Bai Ming-Sheng
Acta Crystallogr Sect E Struct Rep Online. 2010 Feb 6;66(Pt 3):o519. doi: 10.1107/S1600536810003508.
In the title compound, C(21)H(28)N(2)O(4), the dihydro-pyridine ring adopts a flattened boat conformation. The mean plane of the dihydro-pyridine ring and the attached benzene ring form a dihedral angle of 85.1 (1) Å. One of two ethyl fragments is disordered between two conformations in a 0.67 (4):0.33 (4) ratio. In the crystal structure, mol-ecules related by translation along the a axis are linked into chains via inter-molecular N-H⋯O hydrogen bonds.
在标题化合物C₂₁H₂₈N₂O₄中，二氢吡啶环呈扁平船式构象。二氢吡啶环的平均平面与相连的苯环形成85.1 (1) °的二面角。两个乙基片段中的一个在两种构象之间无序排列，比例为0.67 (4):0.33 (4)。在晶体结构中，沿a轴平移相关的分子通过分子间N—H⋯O氢键连接成链。
