(S)-Diethyl {(4-fluorophenyl)[5-(4-methoxyphenyl)-1,3,4-thiadiazol-2-ylamino]methyl}phosphonate

Abstract

In the mol­ecule of the title compound, C20H23FN3O4PS, two methyl groups are disordered over two positions each, with site occupancy factors in the approximate ratio 2:1. The thia­diazole and benzene rings are planar; the thia­diazole ring is oriented with respect to the adjacent benzene ring at a dihedral angle of 7.54 (3)°, while the dihedral angle between the two benzene rings is 81.28 (3)°. In the crystal structure, inter­molecular N—H⋯O hydrogen bonds link the mol­ecules, and a weak intra­molecular C—H⋯S hydrogen bond is also present.