2-(Difluoromethyl)-4-methoxy-3-methylpyridine-6-carboxamide
2-(Difluoromethyl)-3-methoxy-6-methylpyridine-4-carboxamide
4-(Difluoromethyl)-2-iodo-3-(trifluoromethyl)pyridine-6-carboxylic acid
6-(Difluoromethyl)-3-iodo-2-(trifluoromethyl)pyridine-4-carboxylic acid