1-Methyl-cyclopropanesulfonic acid amide

Pale yellow liquid

1-Methyl-cyclopropanesulfonic acid amide is a drug that inhibits the activity of serine protease. It has been shown to inhibit the replication of hepatitis C virus and HIV, while also inhibiting the enzymatic activity of human leukocyte elastase.

1-Methylcyclopropanesulphonamide binds reversibly to the enzyme's active site with an affinity constant (K) of 7 x 10 M at 37°C and pH 7.5 under conditions where the compound exists in its free form or as a protonated molecule.