Methyl 5-(difluoromethyl)-2-nitro-3-(trifluoromethoxy)pyridine-6-carboxylate
3-Methyl-5-nitro-6-(trifluoromethoxy)pyridine-2-sulfonyl chloride
5-(Aminomethyl)-2-(trifluoromethoxy)-3-(trifluoromethyl)pyridine-6-sulfonamide
Methyl 4-(difluoromethyl)-3-nitro-6-(trifluoromethoxy)pyridine-2-carboxylate