1-[3-(4-methoxyphenyl)-1,2,4-thiadiazol-5-yl]piperazine

3-{[(tert-butoxy)carbonyl](propyl)amino}propanoic acid

3-{[(tert-butoxy)carbonyl](2-methoxyethyl)amino}propanoic acid

3-{[(tert-butoxy)carbonyl][2-(diethylamino)ethyl]amino}propanoic acid

3-{[(tert-butoxy)carbonyl][2-(4-fluorophenyl)ethyl]amino}propanoic acid

3-{[(tert-butoxy)carbonyl](diphenylmethyl)amino}propanoic acid

tert-butyl 3-{[(furan-2-yl)methyl]amino}propanoate

tert-butyl 3-{[2-(morpholin-4-yl)ethyl]amino}propanoate

tert-butyl 3-[(2-methoxyethyl)amino]propanoate

tert-butyl 3-{[(2-chlorophenyl)methyl]amino}propanoate

tert-butyl 3-[(4-phenylbutan-2-yl)amino]propanoate