4-Chloro-6-(difluoromethyl)-2-iodo-3-nitropyridine
3-Chloro-2-(difluoromethyl)-5-iodo-4-nitropyridine
3-Chloro-2-(difluoromethyl)-5-fluoro-6-hydroxypyridine
2-Chloro-3-(difluoromethyl)-5-iodo-4-nitropyridine
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