3-(Difluoromethyl)-5-nitro-4-(trifluoromethyl)pyridine-2-carboxaldehyde
2-Methoxy-4-(trifluoromethoxy)pyridine-6-sulfonyl chloride
3-Methoxy-5-methylpyridine-2-methanol
2-(Chloromethyl)-4-(difluoromethyl)-3-(trifluoromethyl)pyridine-5-sulfonyl chloride