ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS, cilt.69, 2013 (ESCI)
In the title compound, C20H17N3O4S, all non-H atoms, except those of the phenyl ring, are approximately coplanar [maximum deviation = 0.2214 (1) angstrom], and the dihedral angle between their best plane and the benzene ring is 53.13 (1)degrees. A short intramolecular O center dot center dot center dot S contact of 2.838 (1)angstrom is formed between the ester carbonyl O atom and the S atom of the thiazolidine ring. In the crystal, molecules associated via OH center dot center dot O, C-H center dot center dot center dot O and C-H center dot center dot center dot S hydrogen bonds form layers parallel to (010), with only C-H center dot center dot center dot O-type short contacts between the molecules in adjacent layers.