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Acta Cryst. (2012). E68, o3146-o3147
[ doi:10.1107/S160053681204192X ]

3-tert-Butyl 5-methyl (2R,4S,5R)-2-(4-methoxyphenyl)-4-(3-nitrophenyl)-1,3-oxazolidine-3,5-dicarboxylate

S. Montiel-Smith, S. Bernès, J. Sandoval-Ramírez, S. Meza-Reyes and J. Dubois

Abstract: The title molecule, C23H26N2O8, was synthesized in three steps starting from m-nitrocinnamic acid. The central oxazolidine ring adopts an almost perfect envelope conformation with the O atom as the flap [puckering parameter [varphi] = 0.3 (6)°]. The dihedral angle formed by the benzene rings is 61.81 (9)°. In the crystal, molecules are connected into double chains parallel to [010] by C-H...O hydrogen bonds. The absolute configuration was assigned from the synthetic procedure.

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