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