1-{3-[(4-methylphenyl)methyl]-1,2,4-thiadiazol-5-yl}piperazine

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

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

3-{[(tert-butoxy)carbonyl][(pyridin-4-yl)methyl]amino}propanoic acid

3-{[(tert-butoxy)carbonyl][(pyridin-2-yl)methyl]amino}propanoic acid

3-{[(tert-butoxy)carbonyl][(oxolan-2-yl)methyl]amino}propanoic acid

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

3-{[(tert-butoxy)carbonyl][(4-methoxyphenyl)methyl]amino}propanoic acid

3-{[(tert-butoxy)carbonyl][(4-chlorophenyl)methyl]amino}propanoic acid

tert-Butyl 3-(benzylamino)propanoate

tert-butyl 3-(cyclopropylamino)propanoate