Methyl 2-(difluoromethyl)-3-hydroxy-6-methoxypyridine-4-acetate
Methyl 3-(difluoromethyl)-5-hydroxy-4-iodopyridine-2-carboxylate
3-(Difluoromethyl)-5-hydroxy-2-iodo-4-nitropyridine
4-(Difluoromethyl)-2-hydroxy-3-methoxypyridine-6-acetic acid
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