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Ethyl 4-[6-(acetylcyclopropylamino)-3-nitro-2-pyridinyl]-1-piperazinecarboxylate

Ethyl 4-[6-(acetylcyclopropylamino)-3-amino-2-pyridinyl]-1-piperazinecarboxylate

4-[[(4-Bromo-2-pyridinyl)-2-pyrazinylamino]methyl]benzoic acid methyl ester

4-[[(6-Amino[3,4’-bipyridin]-2’-yl)-2-pyrazinylamino]methyl]benzoic acid methyl ester

Methyl 3-amino-4-(benzyloxy)butanoate

Ethyl 3-amino-3-phenylacrylate methanesulfonate

Ethyl 3-amino-4-(phenylmethoxy)-2-butenoate

Methyl 4-amino-3-oxobutanoate hydrochloride

Ethyl 3,4-dihydroxybutanoate

Methyl 3-amino-3-(2-thienyl)-2-propenoate

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