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

1-[(tert-butoxy)carbonyl]-3,3-difluoropyrrolidine-2-carboxylic acid

1-[(tert-butoxy)carbonyl]-3,3-dimethyl-1,3-azasilinane-5-carboxylic acid

1-[(tert-butoxy)carbonyl]-3,3-dimethyl-1,3-azasilolidine-5-carboxylic acid

1-[(tert-butoxy)carbonyl]-3,3-dimethylazetidine-2-carboxylic acid

1-[(tert-butoxy)carbonyl]-3,3-dimethylpiperidine-2-carboxylic acid

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

1-[(tert-butoxy)carbonyl]-3,3-dimethylpyrrolidine-2-carboxylic acid

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

1-[(tert-butoxy)carbonyl]-3,5,5-trimethylpyrrolidine-3-carboxylic acid

1-[(tert-butoxy)carbonyl]-3,5-dimethylpiperidine-2-carboxylic acid

1-[(tert-butoxy)carbonyl]-3,5-dimethylpiperidine-4-carboxylic acid

1-[(tert-butoxy)carbonyl]-3-(1H-pyrazol-1-yl)azetidine-3-carboxylic acid

1-[(tert-butoxy)carbonyl]-3-(2,2,2-trifluoroethoxy)azetidine-3-carboxylic acid

1-[(tert-butoxy)carbonyl]-3-(2,2-difluoroethyl)azetidine-3-carboxylic acid

1-[(tert-butoxy)carbonyl]-3-(2,2-difluoroethyl)pyrrolidine-3-carboxylic acid

1-[(tert-butoxy)carbonyl]-3-(2,5-difluorophenyl)pyrrolidine-3-carboxylic acid

1-[(tert-butoxy)carbonyl]-3-(2-hydroxypropan-2-yl)azetidine-3-carboxylic acid

1-[(tert-butoxy)carbonyl]-3-(2-methoxyethyl)azetidine-3-carboxylic acid

1-[(tert-butoxy)carbonyl]-3-(2-methoxyethyl)pyrrolidine-3-carboxylic acid

1-[(tert-butoxy)carbonyl]-3-(2-methylprop-2-en-1-yl)azetidine-3-carboxylic acid

1-[(tert-butoxy)carbonyl]-3-(2-oxopropyl)azetidine-3-carboxylic acid

1-[(tert-butoxy)carbonyl]-3-(2-oxopropyl)pyrrolidine-3-carboxylic acid

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

1-[(tert-butoxy)carbonyl]-3-(3-fluorophenyl)pyrrolidine-2-carboxylic acid

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

1-[(tert-butoxy)carbonyl]-3-(4-hydroxyoxan-4-yl)azetidine-3-carboxylic acid

1-[(tert-butoxy)carbonyl]-3-(carboxymethyl)pyrrolidine-3-carboxylic acid

1-[(tert-butoxy)carbonyl]-3-(cyclopropylmethyl)azetidine-3-carboxylic acid

1-[(tert-butoxy)carbonyl]-3-(difluoromethyl)azetidine-3-carboxylic acid

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

1-[(tert-butoxy)carbonyl]-3-(difluoromethyl)pyrrolidine-3-carboxylic acid

1-[(tert-butoxy)carbonyl]-3-(ethoxycarbonyl)azetidine-3-carboxylic acid

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

1-[(tert-butoxy)carbonyl]-3-(fluoromethyl)azetidine-3-carboxylic acid

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

1-[(tert-butoxy)carbonyl]-3-(fluoromethyl)pyrrolidine-3-carboxylic acid

1-[(tert-butoxy)carbonyl]-3-(hydroxymethyl)azetidine-3-carboxylic acid

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

1-[(tert-butoxy)carbonyl]-3-(hydroxymethyl)pyrrolidine-3-carboxylic acid

1-[(tert-butoxy)carbonyl]-3-(methanesulfonylmethyl)pyrrolidine-3-carboxylic acid

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

1-[(tert-butoxy)carbonyl]-3-(methoxycarbonyl)pyrrolidine-3-carboxylic acid

1-[(tert-butoxy)carbonyl]-3-(methoxymethyl)azetidine-3-carboxylic acid

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