2-(Difluoromethyl)-3-(fluoromethyl)-5-hydroxypyridine
2-(Difluoromethyl)-3-(fluoromethyl)-4-hydroxypyridine
3-(Chloromethyl)-6-(difluoromethyl)-2-hydroxypyridine
5-(Chloromethyl)-2-(difluoromethyl)-4-hydroxypyridine
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