3-(Difluoromethyl)-2-hydroxy-4-methylpyridine-6-acetic acid
6-(Difluoromethyl)-2-hydroxy-3-nitropyridine-4-sulfonyl chloride
2-(Difluoromethyl)-3-hydroxy-4-methylpyridine-6-acetic acid
3-(Difluoromethyl)-2-hydroxy-4-methyl-6-(trifluoromethyl)pyridine