5-Amino-4-(difluoromethyl)-2-nitropyridine
3-(Difluoromethyl)-5-nitropyridine
3-Chloro-2-nitro-4-(trifluoromethoxy)pyridine-5-carboxaldehyde
3-(Difluoromethyl)-2-methoxy-6-nitropyridine-4-sulfonamide
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