3-Cyano-5-(difluoromethyl)-6-hydroxypyridine-2-carbonyl chloride
2-Cyano-3-(difluoromethyl)-6-hydroxypyridine-4-carbonyl chloride
2-Cyano-6-(difluoromethyl)-5-methoxypyridine-3-methanol
3-Cyano-2-(difluoromethyl)-4-iodo-5-methylpyridine
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