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Ethyl 4-(2-benzamido-4-(formyloxy)butanamido)benzoate

Ethyl 2-amino-3-cyclohexylpropanoate

Ethyl 2-aminoheptanoate

Ethyl 2-amino-4-(4-nitrophenyl)butanoate

Ethyl 2-aminooctanoate

Ethyl 2-amino-3-(2,6-dichlorophenyl)propanoate

Ethyl 2-amino-3-p-tolylpropanoate

Ethyl 2-amino-3-o-tolylpropanoate

Ethyl 2-amino-3-(3-chlorophenyl)propanoate

Ethyl 2-amino-3-(3-methoxyphenyl)propanoate

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