6-(Chloromethyl)-4-cyano-2-(difluoromethyl)-3-hydroxypyridine
2-(Chloromethyl)-3-cyano-5-(difluoromethyl)-4-hydroxypyridine
Methyl 2-(difluoromethyl)-3-hydroxy-5-iodopyridine-4-acetate
3-(Difluoromethyl)-6-hydroxy-2-iodopyridine-4-acetic acid
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