CyclopropanecarboxaMide, 1-aMino-N-(cyclopropylsulfonyl)-2-ethenyl-,(1R,2S)-, 4-Methylbenzenesulfonate(1:1)

(1R,2S)-1-Amino-N-(cyclopropylsulfonyl)-2-vinylcyclopropanecarboxamide 4-methylbenzenesulfonate acts as a reagent in the preparation, SAR of methoxyisoquinoline derivatives and discovery of asunaprevir (BMS-650032), an orally efficacious NS3 protease inhibitor for the treatment of hepatitis C virus infection.