ethyl 3-{[(oxolan-2-yl)methyl]amino}propanoate

ethyl 3-{[(2-chlorophenyl)methyl]amino}propanoate

ethyl 3-{[3-(dimethylamino)-2,2-dimethylpropyl]amino}propanoate

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

tert-butyl 3-(hexylamino)-2-methylpropanoate

tert-butyl 3-{[2-(diethylamino)ethyl]amino}-2-methylpropanoate

tert-butyl 3-(cyclopentylamino)-2-methylpropanoate

tert-butyl 3-{[2-(4-fluorophenyl)ethyl]amino}-2-methylpropanoate

methyl 3-{[(furan-2-yl)methyl]amino}-2-methylpropanoate

methyl 3-{[2-(pyrrolidin-1-yl)ethyl]amino}butanoate

methyl 2-methyl-3-{[3-(morpholin-4-yl)propyl]amino}propanoate