How is 1-Cyano-3-methyl-2-(2-{[(4-methyl-1H-imidazol-5-yl)methyl]sulfanyl}ethyl)guanidine (CAS: 60177-39-1) typically synthesized?

This compound is typically synthesized through a multi-step process involving the reaction of a cyano compound with a guanidine derivative in the presence of an appropriate catalyst. The reaction is carried out under mild conditions, and the product is isolated by column chromatography. Common catalysts include imidazolium salts, and the overall yield is around 75-80%.