5-(3,4-Dichlorophenyl)-2-methoxy-3-nitropyridine
2-(3,4-Dichlorophenyl)-6-methoxy-3-nitropyridine
2-Chloro-3-(3,4-dichlorophenyl)-5-nitropyridine
4-Chloro-3-(2,6-dichlorophenyl)-5-nitropyridine
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