tert-Butyl 1-(4-quinazolinyl)-4-piperidinylcarbamate

tert-Butyl 1,2,3,4-tetrahydro-4-quinolinylmethylcarbamate

tert-Butyl 2-(4-methoxybenzyl)-1-oxo-2,7-diazaspiro[3.5]nonane-7-carboxylate

tert-Butyl 2-methyl-6,7-dihydro[1,3]thiazolo[5,4-c]pyridine-5(4H)-carboxylate

tert-Butyl 3-[(2E)-3-(dimethylamino)-2-(3-methyl-5-isoxazolyl)-2-propenoyl]-1-piperidinecarboxylate

tert-Butyl 3-[6-(2-methylphenyl)-2-pyridinyl]-1-pyrrolidinecarboxylate

tert-Butyl 3-(2,4-dimethylphenyl)-3-hydroxy-1-piperidinecarboxylate

tert-Butyl 3-(6-bromo-2-pyridinyl)-1-pyrrolidinecarboxylate

tert-Butyl 3-acetylphenylcarbamate

tert-Butyl 4-[(4-chloro-2-cyanophenoxy)methyl]-1-piperidinecarboxylate

tert-Butyl 4-[[4-(ethoxycarbonyl)-1-piperidinyl]methyl]-1-piperidinecarboxylate

tert-Butyl 4-(2-hydroxybutyl)piperazine-1-carboxylate

tert-Butyl 4-(4-fluorobenzyl)-3-methylpiperazine-1-carboxylate

tert-Butyl 4-aminospiro[chroman-2,4′-piperidine]-1′-carboxylate hydrochloride

tert-Butyl 5-chlorospiro[indoline-3,4′-piperidine]-1-carboxylate