3-(Difluoromethyl)-4,5-dimethoxy-2-hydroxypyridine
2-(Difluoromethyl)-3,4-dimethoxy-6-hydroxypyridine
2-(Difluoromethyl)-3,4-dimethoxy-5-hydroxypyridine
4-(Difluoromethyl)-2,6-dimethoxy-3-hydroxypyridine
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