(2S,4S)-1-((2S,3R)-2-amino-3-methylpentanoyl)-4-azidopyrrolidine-2-carbonitrile

(S)-2-Phenyl-5,7-dimethylpyrazolo[1,5-a]pyrimidine-6-carboxylic acid{2-[(2-cyanopyrrolidin-1-yl)-2-oxoethylamino]-2-methylpropyl}amide hydrochloride

(2S)-2-amino-4-[4-[bis(4-fluorophenyl)methyl]piperazin-1-yl]-1-(1,3-dihydroisoindol-2-yl)butane-1,4-dione

(2S)-1-((S)-2-amino-4-(4-(bis(4-fluorophenyl)methyl)piperazin-1-yl)-4-oxobutanoyl)-4-methylpyrrolidine-2-carbonitrile bis(2,2,2-trifluoroacetate)

(1R,2S,5S)-3-((S)-2-Amino-4-(4-(bis(4-fluorophenyl)methyl)piperazin-1-yl)-4-oxo-butanoyl)-3-azabicyclo[3.1.0]hexane-2-carbonitrile 2,2,2-trifluoroacetate

(2S)-2-amino-4-(4-(bis(4-fluorophenyl)methyl)piperazin-1-yl)-1-(3-methylpyrrolidin-1-yl)butane-1,4-dione 2,2,2-trifluoroacetate

(S)-2-Phenyl-7-methylpyrazolo[1,5-a]pyrimidine-6-carboxylic acid{2-[(2-cyanopyrrolidin-1-yl)-2-oxoethylamino]-2-methylpropyl}amide hydrochloride

(S)-2,5,7-Trimethylpyrazolo[1,5-a]pyrimidine-6-carboxylic acid{2-[(2-cyanopyrrolidin-1-yl)-2-oxoethylamino]-2-methylpropyl}amide hydrochloride

(2S)-2-amino-4-(4-(bis(4-fluorophenyl)methyl)piperazin-1-yl)-1-(3-ethylpyrrolidin-1-yl)butane-1,4-dione bis(2,2,2-trifluoroacetate)

(S)-2-Methyl-7-hydroxypyrazolo[1,5-a]pyrimidine-6-carboxylic acid{2-[(2-cyanopyrrolidin-1-yl)-2-oxoethylamino]-2-methylpropyl}amide hydrochloride

N-[2-({2-[(2S)-2-cyanopyrrolidin-1-yl]-2-oxoethyl}amino)-2-methylpropyl]-2-methylpyrazolo[1,5-a]pyrimidine-6-carboxamide hydrochloride

(S)-2,7-Dimethylpyrazolo[1,5-a]pyrimidine-6-carboxylic acid{2-[(2-cyanopyrrolidin-1-yl)-2-oxoethylamino]-2-methylpropyl}amide hydrochloride

(2S,4S)-1-((S)-2-amino-4-(4-(bis(4-fluorophenyl)methyl)piperazin-1-yl)-4-oxobutanoyl)-4-azidopyrrolidine-2-carbonitrile bis(2,2,2-trifluoroacetate)

(S)-2-amino-4-(4-(bis(4-fluorophenyl)methyl)piperazin-1-yl)-1-(3-methylenepyrrolidin-1-yl)butane-1,4-dione bis(2,2,2-trifluoroacetate)

1-((S)-2-amino-5-(4-(bis(4-fluorophenyl)methyl)piperazin-1-yl)-5-oxopentanoyl)-4-methylenepyrrolidine-2(S)-carbonitrile bis(2,2,2-trifluoroacetate)

(2S,3R)-2-amino-1-(isoindolin-2-yl)-3-methylpentan-1-one

(S)-2-Amino-4-(4-(bis(4-fluorophenyl)methyl)piperazin-1-yl)-1-(4H-pyrrolo[3,4-c]isoxazol-5(6H)-yl)butane-1,4-dione 2,2,2-trifluoroacetate

(2S)-2-amino-4-(4-(bis(4-fluorophenyl)methyl)piperazin-1-yl)-1-(3-(trifluoromethyl)pyrrolidin-1-yl)butane-1,4-dione

(2S,3R)-2-amino-3-methyl-1-(3-methylpyrrolidin-1-yl)pentan-1-one 2,2,2-trifluoroacetate

(2S,3R)-2-amino-1-(3-ethylpyrrolidin-1-yl)-3-methylpentan-1-one 2,2,2-trifluoroacetate

(2S)-1-{2-[(3-hydroxyadamantan-1-yl)amino]acetyl}pyrrolidine-2-carbonitrile

(S)-2-Amino-4-(4-(bis(4-fluorophenyl)methyl)piperazin-1-yl)-1-(2-methyl-4H-pyrrolo[3,4-d]thiazol-5(6H)-yl)butane-1,4-dione 2,2,2-trifluoroacetate

(1R,2S,5S)-3-((2S,3R)-2-Amino-3-methylpentanoyl)-3-azabicyclo[3.1.0]hexane-2-carbonitrile 2,2,2-trifluoroacetate

(2S,3R)-2-amino-3-methyl-1-(3-methylenepyrrolidin-1-yl)pentan-1-one 2,2,2-trifluoroacetate

(2S,3R)-2-Amino-3-methyl-1-(4H-pyrrolo[3,4-c]isoxazol-5(6H)-yl)pentan-1-one 2,2,2-trifluoroacetate

(2S,3R)-2-Amino-3-methyl-1-(2-methyl-4H-pyrrolo[3,4-d]thiazol-5(6H)-yl)pentan-1-one 2,2,2-trifluoroacetate

(S)-2-Amino-4-(4-(bis(4-fluorophenyl)methyl)piperazin-1-yl)-1-(pyrrolo[3,4-c]pyrazol-5(2H,4H,6H)-yl)butane-1,4-dione 2,2,2-trifluoroacetate

(2S,3R)-2-Amino-3-methyl-1-(pyrrolo[3,4-c]pyrazol-5(2H,4H,6H)-yl)pentan-1-one 2,2,2-trifluoroacetate

2-[[4-[(3R)-3-aminopiperidin-1-yl]-3-but-2-ynyl-2,6-dioxopyrimidin-1-yl]methyl]-6-fluorobenzoic acid

2-[[4-[(3R)-3-aminopiperidin-1-yl]-3-but-2-ynyl-2,6-dioxopyrimidin-1-yl]methyl]-5-fluorobenzoic acid

2-[[4-[(3R)-3-aminopiperidin-1-yl]-3-but-2-ynyl-2,6-dioxopyrimidin-1-yl]methyl]-4-methoxybenzoic acid

2-[[4-[(3R)-3-aminopiperidin-1-yl]-3-but-2-ynyl-2,6-dioxopyrimidin-1-yl]methyl]-5-bromobenzoic acid

methyl 2-[[4-[(3R)-3-aminopiperidin-1-yl]-3-but-2-ynyl-2,6-dioxopyrimidin-1-yl]methyl]-4-bromobenzoate

2-[[4-[(3R)-3-aminopiperidin-1-yl]-3-but-2-ynyl-2,6-dioxopyrimidin-1-yl]methyl]-4-bromobenzoic acid

2-[[4-[(3R)-3-aminopiperidin-1-yl]-3-but-2-ynyl-2,6-dioxopyrimidin-1-yl]methyl]benzoic acid

2-[[4-[(3R)-3-aminopiperidin-1-yl]-3-but-2-ynyl-2,6-dioxopyrimidin-1-yl]methyl]-4-cyanobenzoic acid

2-[[4-[(3R)-3-aminopiperidin-1-yl]-3-but-2-ynyl-2,6-dioxopyrimidin-1-yl]methyl]-5-chlorobenzoic acid

methyl 2-[[4-[(3R)-3-aminopiperidin-1-yl]-3-but-2-ynyl-2,6-dioxopyrimidin-1-yl]methyl]-6-fluorobenzoate

(S)-2-tert-Butyl-7-methylpyrazolo[1,5-a]pyrimidine-6-carboxylic acid{2-[(2-cyanopyrrolidin-1-yl)-2-oxoethylamino]-2-methylpropyl}amide hydrochloride

(S)-2-tert-Butyl-5,7-dimethylpyrazolo[1,5-a]pyrimidine-6-carboxylic acid{2-[(2-cyanopyrrolidin-1-yl)-2-oxoethylamino]-2-methylpropyl}amide hydrochloride

(S)-2-Methyl-7-trifluoromethylpyrazolo[1,5-a]pyrimidine-6-carboxylic acid{2-[(2-cyanopyrrolidin-1-yl)-2-oxoethylamino]-2-methylpropyl}amide hydrochloride