Date Published: June 01, 2010
Publisher: International Union of Crystallography
Author(s): Hualing Zhu, Jun Shi, Zhen Wei, Ronghua Dai, Xin Zhang.
The molecule of the title compound, C22H23N3O3, exists in the enamine–keto form. A strong intramolecular N—H⋯O hydrogen bond occurs, generating an S(6) ring. The dihedral angle between the heterocycle and the adjacent phenyl ring is 3.75 (15)°.
For the antibacterial activity of Schiff bases derived from 4-acyl-5-pyrazolones and metal complexes, see: Li et al. (1997 ▶, 2004 ▶). For the biological activity of amino acid esters, see: Xiong et al. (1993 ▶). For related structures, see: Wang et al. (2003 ▶); Zhang et al. (2004 ▶, 2010 ▶); Zhu et al. (2005 ▶).