Crystal structure of N-[4-amino-5-cyano-6-(methyl­sulfan­yl)pyridin-2-yl]-2-(cyclo­hexyl­sulfan­yl)acetamide

In the title mol­ecule, C(15)H(20)N(4)OS(2), the acetamido fragment is nearly coplanar with the pyridyl ring [C—N—C—C torsion angle = −4.1 (2)°], while the cyclo­hexyl­sulfanyl portion protrudes from this plane [N—C—C—S torsion angle = −40.8 (6)°]. In the crystal, alternating pairwise N—H⋯O and N—H⋯N hydrogen bonds across inversion centres form chains along [101], which are associated into stepped layers via offset π–π stacking between pyridyl rings [centroid–centroid distance = 3.566 (1) Å]. The cyclo­hexyl group and the two atoms of the S—C bond attached to it are disordered over two sets of sites with site-occupancy factors of 0.8845 (18) and 0.1155 (18).