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Ethyl 2-aminoisonicotinate

Ethyl 2-aminooxazole-5-carboxylate

Ethyl 6-bromoimidazo[1,2-a)pyridine-2-carboxylate

Ethyl 2-bromooxazole-4-carboxylate

Ethyl 6-chloroimidazo[1,2-a)pyridine-2-carboxylate

Ethyl 2-chlorooxazole-5-carboxylate

Ethyl 4-hydroxy-8-methoxyquinoline-3-carboxylate

Ethyl 4-hydroxynicotinate

Ethyl 5-methylimidazo[1,2-a)pyridine-2-carboxylate

Ethyl 7-methylimidazo[1,2-a)pyridine-2-carboxylate

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