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

methyl 3-[(2,2-dimethoxyethyl)amino]butanoate

methyl 3-{[5-(diethylamino)pentan-2-yl]amino}-2-methylpropanoate

methyl 3-{[3-(dimethylamino)propyl]amino}-2-methylpropanoate

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

methyl 3-{[(thiophen-2-yl)methyl]amino}butanoate

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

methyl 3-[(2,2-diethoxyethyl)amino]-2-methylpropanoate

ethyl 3-(4-methylpiperidin-1-yl)propanoate

ethyl 3-[butyl(ethyl)amino]propanoate

3-[butyl(ethyl)amino]propanoic acid