Ethyl 2-amino-3-benzoyl-4, 7-dihydrothieno(2, 3-c)pyridine-6(5H)-carboxylate

Ethyl 2-amino-3-cyclobutylpropanoate

Ethyl 2-amino-3-hydroxy-octadecanoate, (2S, 3S)-

Ethyl 2-amino-4, 5, 6, 7-tetrahydrobenzo(b)thiophene-3-carboxylate

Ethyl 2-amino-4, 5-bis(2-methoxyethoxy)benzoate

Ethyl 2-amino-4, 5-dihydro-3-furoate

Ethyl 2-amino-4, 5-dimethyl3-thenoate

Ethyl 2-amino-4-(3, 4, 5-trimethoxyphenyl)-3-thiophenecarboxylate

Ethyl 2-amino-4-(cyanoethoxycarbonylmethyl)-4H-chromene-3-carboxylate

Ethyl 2-amino-4-phenyl-1, 3-thiazole-5-carboxylate

Ethyl 2-amino-5, 6, 7, 8-tetrahydro-4H-cyclohepta(b)thiophene-3-carboxylate

Ethyl 2-amino-5-ethyl-3-thenoate

Ethyl 2-amino-6-benzyl-4, 5, 6, 7-tetrahydrothieno(2, 3-c)pyridine-3-carboxylate hydrochloride

Ethyl 2-amino-alpha-(hydroxyimino)thiazol-4-acetate

Ethyl 2-amino-alpha-(methoxyimino)thiazol-4-acetate

Ethyl 2-aminothiazol-4-acetate

Ethyl 2-benzoyl-3-ethoxyacrylate

Ethyl 2-benzoyl-3-oxo-3-phenylpropionate

Ethyl 2-benzyl-1, 3-dithiane-2-carboxylate

Ethyl 2-benzylbenzoylacetate