(2R)-2-Cinnamoylamino-N-[5-(4-methoxy­phen­yl)-1,3,4-thia­diazol-2-yl]propanamide

The asymmetric unit of the title compound, C(21)H(20)N(4)O(3)S, contains two independent mol­ecules. The dihedral angles between the two benzene rings are 47.6 (1) and 30.2 (1)°, the corresponding values between the p-methoxy­benzene and thia­diazol rings are 12.3 (1) and 24.7 (1)°, respectively, for the two mol­ecules. The conformations of the N—H and C=O bonds are anti with respect to each other. The enone groups show a trans configuration. The crystal structure is stabilized by N—H⋯O and N—H⋯N inter­actions. The absolute structure could not be determined from the X-ray data but the absolute configuration has been assigned by reference to an unchanging chiral centre in the synthetic procedure.