ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE, vol.67, 2011 (SCI-Expanded)
In the title compound, C(21)H(21)N(3)O(3), the relative stereochemistry of the four stereogenic C atoms has been determined. The dihedral angle between the phenyl rings is 77.63 (7)degrees. In the crystal, ribbons spread along the a axis are formed by N-H center dot center dot center dot O hydrogen bonds. C-H center dot center dot center dot pi interactions also occur.