N-Sulphamyl-3-chloropropionamidine hydrochloride

It serves as an alkylating agent, typically reacting with 2-guanidino-4-mercaptomethyl-thiazole to introduce the necessary sulfamyl-propionamidine side chain with high yields, often exceeding 70%. N-Sulfamyl-3-chloropropionamidine hydrochloride is a critical intermediate employed to synthesize the anti-ulcer drug Famotidine.

API Name Famotidine
CAS No 106649-95-0
Molecular Formula C3H9Cl2N3O2S
Molecular Weight 222.09 g/mol
Synonyms 3-chloro-N'-sulfamoylpropanimidamide;hydrochloride