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

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

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

tert-butyl 3-(methylamino)propanoate

ethyl 3-[(2-ethoxyethyl)amino]propanoate

ethyl 3-[(2-methoxyethyl)amino]propanoate

ethyl 3-[(3-methylbutyl)amino]propanoate

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

ethyl 3-{[3-(diethylamino)propyl]amino}propanoate

tert-butyl 3-{[3-(propan-2-yloxy)propyl]amino}propanoate

tert-butyl 3-[(butan-2-yl)amino]-2-methylpropanoate