Crystal structure of methyl (4R)-4-(4-methoxybenzoyl)-4-{[(1R)-1-phenylethyl]carbamoyl}butanoate
2017
The title compound, C22H25NO5, was prepared by CAN [cerium(IV) ammonium nitrate] oxidation of the corresponding β-lactam. The dihedral angle between the benzene rings is 13.3 (4)° and the C—N—C(=O)—C torsion angle is 176.1 (6)°. In the crystal, amide-C(4) N—H⋯O and reinforcing C—H⋯O hydrogen bonds link the molecules into infinite [010] chains. Further C—H⋯O hydrogen bonds cross-link the chains in the c-axis direction.
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