2,4-Difluoro-6-(difluoromethyl)-3-hydroxypyridine
4,6-Difluoro-3-(difluoromethyl)-2-hydroxypyridine
2,4-Difluoro-5-(difluoromethyl)-3-hydroxypyridine
2,4-Difluoro-3-(difluoromethyl)-6-hydroxypyridine
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