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

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

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

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

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

tert-butyl 3-[(1-methoxypropan-2-yl)amino]propanoate

tert-butyl 3-(butylamino)propanoate

tert-butyl 3-{[(2H-1,3-benzodioxol-5-yl)methyl]amino}propanoate

tert-butyl 3-{[2-(2,4-dichlorophenyl)ethyl]amino}propanoate

tert-butyl 3-{[(4-methoxyphenyl)methyl]amino}propanoate

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