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

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

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

tert-butyl 3-{[3-(1H-imidazol-1-yl)propyl]amino}-2-methylpropanoate

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

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

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

methyl 3-[(2-methoxyethyl)amino]-2-methylpropanoate

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

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

methyl 3-[(3-ethoxypropyl)amino]-2-methylpropanoate