1-[(tert-butoxy)carbonyl]-4,4-bis(trifluoromethyl)pyrrolidine-3-carboxylic acid

1-[(tert-butoxy)carbonyl]-4,4-difluoro-2-methylpyrrolidine-2-carboxylic acid

1-[(tert-butoxy)carbonyl]-4,4-difluoro-3-methylpyrrolidine-3-carboxylic acid

1-[(tert-butoxy)carbonyl]-4,4-difluoropiperidine-2-carboxylic acid

1-[(tert-butoxy)carbonyl]-4,4-difluoropiperidine-3-carboxylic acid

1-[(tert-butoxy)carbonyl]-4,4-difluoropyrrolidine-2-carboxylic acid

1-[(tert-butoxy)carbonyl]-4,4-difluoropyrrolidine-3-carboxylic acid

1-[(tert-butoxy)carbonyl]-4,4-dimethylazetidine-2-carboxylic acid

1-[(tert-butoxy)carbonyl]-4,4-dimethylpiperidine-2-carboxylic acid

1-[(tert-butoxy)carbonyl]-4,4-dimethylpiperidine-3-carboxylic acid

1-[(tert-butoxy)carbonyl]-4,4-dimethylpyrrolidine-2-carboxylic acid

1-[(tert-butoxy)carbonyl]-4,4-dimethylpyrrolidine-3-carboxylic acid

1-[(tert-butoxy)carbonyl]-4,5,6,7-tetrahydro-1H-azepine-3-carboxylic acid

1-[(tert-butoxy)carbonyl]-4,5-dihydro-1H-pyrrole-2-carboxylic acid

1-[(tert-butoxy)carbonyl]-4,5-dihydro-1H-pyrrole-3-carboxylic acid

1-[(tert-butoxy)carbonyl]-4,6-dimethoxy-2,3-dihydro-1H-indole-2-carboxylic acid

1-[(tert-butoxy)carbonyl]-4,6-dimethylpiperidine-2-carboxylic acid

1-[(tert-butoxy)carbonyl]-4-(1H-pyrazol-1-yl)piperidine-4-carboxylic acid

1-[(tert-butoxy)carbonyl]-4-(2,2,2-trifluoroethoxy)piperidine-4-carboxylic acid

1-[(tert-butoxy)carbonyl]-4-(2,2,2-trifluoroethyl)piperidine-2-carboxylic acid

1-[(tert-butoxy)carbonyl]-4-(2,2-difluoroethyl)piperidine-4-carboxylic acid

1-[(tert-butoxy)carbonyl]-4-(2-chloro-4-methylphenyl)pyrrolidine-3-carboxylic acid

1-[(tert-butoxy)carbonyl]-4-(2-methoxyethyl)piperidine-4-carboxylic acid

1-[(tert-butoxy)carbonyl]-4-(2-methylpropyl)piperidine-4-carboxylic acid

1-[(tert-butoxy)carbonyl]-4-(2-oxopropyl)piperidine-4-carboxylic acid

1-[(tert-butoxy)carbonyl]-4-(3-hydroxypropyl)piperidine-4-carboxylic acid

1-[(tert-butoxy)carbonyl]-4-(4-chlorophenyl)piperidine-4-carboxylic acid

1-[(tert-butoxy)carbonyl]-4-(4-fluorophenyl)piperidine-4-carboxylic acid

1-[(tert-butoxy)carbonyl]-4-(4-methoxyphenyl)piperidine-4-carboxylic acid

1-[(tert-butoxy)carbonyl]-4-(6-fluoropyridin-2-yl)piperidine-4-carboxylic acid

1-[(tert-butoxy)carbonyl]-4-(cyclopropylmethyl)piperidine-4-carboxylic acid

1-[(tert-butoxy)carbonyl]-4-(difluoromethyl)piperidine-4-carboxylic acid

1-[(tert-butoxy)carbonyl]-4-(dimethylamino)piperidine-4-carboxylic acid

1-[(tert-butoxy)carbonyl]-4-(fluoromethyl)piperidine-4-carboxylic acid

1-[(tert-butoxy)carbonyl]-4-(hydroxymethyl)piperidine-4-carboxylic acid

1-[(tert-butoxy)carbonyl]-4-(methanesulfonylmethyl)piperidine-4-carboxylic acid

1-[(tert-butoxy)carbonyl]-4-(methoxycarbonyl)piperidine-4-carboxylic acid

1-[(tert-butoxy)carbonyl]-4-(methoxymethyl)azepane-4-carboxylic acid

1-[(tert-butoxy)carbonyl]-4-(methoxymethyl)piperidine-4-carboxylic acid

1-[(tert-butoxy)carbonyl]-4-(oxan-4-yl)piperidine-4-carboxylic acid

1-[(tert-butoxy)carbonyl]-4-(oxolan-3-yl)piperidine-4-carboxylic acid

1-[(tert-butoxy)carbonyl]-4-(prop-2-en-1-yl)azepane-4-carboxylic acid

1-[(tert-butoxy)carbonyl]-4-(prop-2-en-1-yl)piperidine-4-carboxylic acid

1-[(tert-butoxy)carbonyl]-4-(prop-2-yn-1-yl)piperidine-4-carboxylic acid

1-[(tert-butoxy)carbonyl]-4-(propan-2-yl)piperidine-2-carboxylic acid