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Methyl 2-(tert-butoxycarbonylamino)thiazole-4-carboxylate

Methyl 6-aminopicolinate

Methyl 5-bromo-2-hydroxynicotinate

Methyl 5-bromo-2-methoxynicotinate

Methyl 5-bromonicotinate

Methyl 4-bromopicolinate

Methyl 5-bromo-1H-pyrrole-2-carboxylate

Methyl 5-bromothiazole-4-carboxylate

Methyl 2-chlorothiazole-4-carboxylate

Methyl 4-hydroxynicotinate

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