Abstract
The title compound, C27H27N3O6, a bis-amide derivative, is also a chiral amino acid ester with l-phenylalanine methyl ester groups as amine substituents. The pyridine ring is oriented at dihedral angles of 89.69 (3) and 62.95 (3)° with respect to the phenyl rings, while the dihedral angle between the phenyl rings is 60.76 (3)°. In the crystal structure, intermolecular N—H⋯O hydrogen bonds link the molecules into chains. One of the carbonyl O atoms and one of the methoxy CH3 groups are disordered over two positions. The O atom was refined with occupancies of 0.69 (13) and 0.31 (13), while C and H atoms were refined with occupancies of 0.69 (8) and 0.31 (8).
Highlights
The title compound, C27H27N3O6, a bis-amide derivative, is a chiral amino acid ester with l-phenylalanine methyl ester groups as amine substituents
The pyridine ring is oriented at dihedral angles of 89.69 (3) and 62.95 (3) with respect to the phenyl rings, while the dihedral angle between the phenyl rings is 60.76 (3)
Intermolecular N—HÁ Á ÁO hydrogen bonds link the molecules into chains
Summary
Key indicators: single-crystal X-ray study; T = 293 K; mean (C–C) = 0.007 A; disorder in main residue; R factor = 0.046; wR factor = 0.134; data-to-parameter ratio = 7.6. The title compound, C27H27N3O6, a bis-amide derivative, is a chiral amino acid ester with l-phenylalanine methyl ester groups as amine substituents. Intermolecular N—HÁ Á ÁO hydrogen bonds link the molecules into chains. One of the carbonyl O atoms and one of the methoxy CH3 groups are disordered over two positions. Related literature For general background, see: Darshan et al (1998). See: Amr et al (1999); Moriuchi et al (2006). For bond-length data, see: Allen et al (1987)
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