2-Methoxy-5-nitro-3-(perfluorophenyl)pyridine
3,5-Bis(perfluorophenyl)-4-nitropyridine
4-Amino-3-(difluoromethyl)-2-iodo-6-nitropyridine
3-Amino-5-(difluoromethyl)-6-iodo-2-nitropyridine
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