Sematilide is an antiarrhythmic agent. It is the same structure as for procainamide, differing only by the placement of a mesyl sulfonamide moiety to the anilino nitrogen.
Sematilide is an antiarrhythmic agent. It is the same structure as for procainamide, differing only by the placement of a mesyl sulfonamide moiety to the anilino nitrogen.
==Synthesis== class=skin-invert-image|thumb|center|500px|Synthesis of sematilide Sematilide can be synthesized from benzocaine (1). Reaction with mesyl chloride, followed by saponification and removal of the water from the reaction mixture, gives sodium 4-[(methylsulfonyl)amino]benzoate (2). Chlorination with thionyl chloride gives 4-[(methylsulfonyl)amino]benzoyl chloride. Amide formation with N,N-diethylethylenediamine (3) then concludes the synthesis of sematilide (4).
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).