Kannan M, Kumaravel Kandhasamy, Vasuki Gnanasambandam, Krishna R
Acta Crystallogr Sect E Struct Rep Online. 2010 Sep 11;66(Pt 10):o2536. doi: 10.1107/S1600536810035592.
In the title compound, C(23)H(22)N(2)O(3), the pyran ring adopts a twisted boat conformation. The tolyl rings and carboxyl-ate group are attached to the pyran ring with torsion angles of -77.1 (2), 59.5 (3) and 17.8 (3)°, respectively. The ethyl group is disordered over two orientations with a site-occupancy ratio of 0.508 (5):0.492 (5). In the crystal, mol-ecules are linked by N-H⋯N and N-H⋯O hydrogen bonds, generating a chain running the a axis. Weak C-H⋯O, C-H⋯N and C-H⋯π inter-actions are also observed.
在标题化合物C₂₃H₂₂N₂O₃中，吡喃环呈扭曲船式构象。甲苯基环和羧酸酯基团与吡喃环相连，扭转角分别为-77.1（2）°、59.5（3）°和17.8（3）°。乙基在两个取向间无序分布，占位比为0.508（5）:0.492（5）。在晶体中，分子通过N-H⋯N和N-H⋯O氢键相连，形成沿a轴延伸的链。还观察到弱的C-H⋯O、C-H⋯N和C-H⋯π相互作用。
