Grazoprevir, also known as MK5172, is a drug approved for the treatment of hepatitis C. Grazoprevir is a second generation hepatitis C virus protease inhibitor acting at the NS3/4a protease targets. It has good activity against a range of HCV genotype variants, including some that are resistant to most currently used antiviral medications.
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Trinius, Frank. Packaging comprising administration units of a crystalline form of the Nedd8-activating enzyme inhibitor [(1S,2S,4R)-4-[[6-[((1R,2S)-5-chloro-2-methoxy-2,3-dihydro-1H-inden-1-yl)amino]pyrimidin-4-yl]oxy]-2-hydroxycyclopentyl]methyl sulfamate hydrochloride. Assignee IP Gesellschaft Fuer Management mbH, Germany. EP 2764866. 2014.