6-(((1-methyl-1H-imidazol-2-yl)thio)methyl)-4-oxo-4H-pyran-3-yl 4-chlorobenzoate

1-Methyl-6-oxo-4-(2-phenylethyl)-1,6-dihydropyrimidine-5-carboxylic acid

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

4-({[(tert-butoxy)carbonyl]amino}methyl)-1-{[(9H-fluoren-9-yl)methoxy]carbonyl}-2,2,6,6-tetramethylpiperidine-4-carboxylic acid

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

1-(2,2-Difluoroethyl)-6-oxo-4-propyl-1,6-dihydropyrimidine-5-carboxylic acid

4-Cyclopropyl-1-(2,2-difluoroethyl)-6-oxo-1,6-dihydropyrimidine-5-carboxylic acid

4-(Cyclopropylmethyl)-1-(2,2-difluoroethyl)-6-oxo-1,6-dihydropyrimidine-5-carboxylic acid

1-[(Tert-butoxy)carbonyl]-4-(methoxycarbonyl)-2,2,6,6-tetramethylpiperidine-4-carboxylic acid

3'H-1-azaspiro[bicyclo[3.2.1]octane-6,2'-[1,5]oxazole]-4'-carboxylic acid

1-[(Tert-butoxy)carbonyl]-4-(ethoxycarbonyl)-2,2,6,6-tetramethylpiperidine-4-carboxylic acid