5-(Difluoromethyl)-4-methyl-3-nitropyridine-2-sulfonamide
6-(Difluoromethyl)-3-methyl-4-nitropyridine-2-sulfonamide
2-(Difluoromethyl)-6-methoxy-4-(trifluoromethyl)pyridine-3-carboxaldehyde
2-(Difluoromethyl)-5-methoxy-4-(trifluoromethyl)pyridine-3-carboxaldehyde