Venkateswaramoorthi R, Rizwana Begum S, Hema R, Krishnasamy K, Anitha A G
Department of Chemistry, Annamalai University, Annamalai Nagar 608 002, India.
Acta Crystallogr Sect E Struct Rep Online. 2013 Apr 20;69(Pt 5):o768. doi: 10.1107/S1600536813010180. Print 2013 May 1.
In the title compound, C18H21NO3, the bicyclic ring system adopts a twin-chair conformation. The two methyl groups attached to the bicycle are in an equatorial orientation for both rings. One of the furan rings is disordered over two orientations with an occupancy ratio of 0.686 (6):0.314 (6). In the crystal, very long N-H⋯O hydrogen bonds connect the mol-ecules into a chain perpendicular to the ac plane.
在标题化合物C₁₈H₂₁NO₃中,双环体系呈双椅式构象。连接在双环上的两个甲基在两个环中均处于平伏键取向。其中一个呋喃环在两种取向上无序,占有率比为0.686 (6):0.314 (6)。在晶体中,非常长的N—H⋯O氢键将分子连接成垂直于ac平面的链。