tert-butyl 2-methyl-3-{[(4-methylphenyl)methyl]amino}propanoate

methyl 3-(cyclohexylamino)-2-methylpropanoate

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

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

methyl 3-[(3-methoxypropyl)amino]butanoate

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

methyl 2-methyl-3-[(3-phenylpropyl)amino]propanoate

methyl 2-methyl-3-(methylamino)propanoate

methyl 2-methyl-3-(octylamino)propanoate

methyl 3-{[3-(diethylamino)propyl]amino}butanoate

3-[bis(2-methylpropyl)amino]propanoic acid