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

tert-butyl 3-[(3-butoxypropyl)amino]propanoate

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

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

tert-butyl 3-[(1-phenylethyl)amino]propanoate

tert-Butyl 3-(ethylamino)propanoate

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

tert-butyl 3-{[3-(1H-imidazol-1-yl)propyl]amino}propanoate

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

tert-butyl 3-{[2-(1H-indol-3-yl)ethyl]amino}propanoate

tert-butyl 3-(octylamino)propanoate