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