2-Cyano-5-(difluoromethyl)-3-hydroxy-4-methylpyridine
6-Cyano-4-(difluoromethyl)-3-hydroxy-2-methylpyridine
4-(Difluoromethyl)-2-hydroxy-5-iodopyridine-3-acetic acid
Ethyl 3-chloro-5-hydroxypicolinate
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