2-(Chloromethyl)-6-(difluoromethyl)-5-methylpyridine-3-carboxylic acid
6-(Chloromethyl)-2-(difluoromethyl)-4-methylpyridine-3-carboxylic acid
2-(Chloromethyl)-6-(difluoromethyl)-4-methylpyridine-3-carboxylic acid
2-(Chloromethyl)-6-(difluoromethyl)-3-methylpyridine-5-carboxylic acid