Crystal structure of methyl (Z)-2-[(Z)-3-methyl-2-({(E)-1-[(R*)-4-methyl­cyclo­hex-3-en-1-yl]ethyl­idene}hydrazinyl­idene)-4-oxo­thia­zolidin-5-yl­idene]acetate

The new title 4-thia­zolidinone derivative, C(16)H(21)N(3)O(3)S, was obtained from the cyclization reaction of 4-methyl-3-thio­semicarbazone and dimethyl acetyl­enedi­carboxyl­ate (DMAD). The cyclo­hexyl­idene ring has an envelope conformation with the stereogenic centre C atom as the flap. Its mean plane makes a dihedral angle of 56.23 (9)° with the thia­zolidine ring mean plane. In the crystal, mol­ecules are linked by C—H⋯O hydrogen bonds forming chains propagating in the [001] direction. Within the chains there are offset π–π inter­actions between the thia­zolidine rings of inversion-related mol­ecules [centroid–centroid distance = 3.703 (1) Å]. The chains are linked by further C—H⋯O hydrogen bonds, forming slabs parallel to the ac plane.