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Ethyl oxo-(n-pyrazin-2-yl-hydrazino)acetate

Ethyl oxazolo[4,5-b]pyridine-2-carboxylate

Ethyl n-cbz-morpholine-2-carboxylate

Ethyl morpholine-2-carboxylate

Ethyl imidazo[2,1-b]thiazole-2-carboxylate

Ethyl imidazo[1,5-a]pyridine-3-carboxylate

Ethyl furo[3,2-c]pyridine-4-carboxylate

Ethyl furo[3,2-b]pyridine-5-carboxylate

Ethyl furo[2,3-c]pyridine-5-carboxylate

Ethyl dichloroacetate

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