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

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

tert-butyl 3-[(2,2-diethoxyethyl)amino]propanoate

ethyl 3-(hexylamino)propanoate

ethyl 3-[(3-methylbutan-2-yl)amino]propanoate

ethyl 3-{[5-(diethylamino)pentan-2-yl]amino}propanoate

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

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

tert-butyl 2-methyl-3-[(2-methylpropyl)amino]propanoate

tert-butyl 2-methyl-3-[(3-methylbutyl)amino]propanoate

tert-butyl 3-[(2,2-dimethoxyethyl)amino]-2-methylpropanoate