4-Cyano-5-(difluoromethyl)-3-fluoro-2-methylpyridine
6-Chloro-4-(difluoromethyl)-2-nitropyridine-3-sulfonyl chloride
2-Chloro-4-(difluoromethyl)-5-nitropyridine-3-sulfonyl chloride
2-Chloro-3-(difluoromethyl)-6-methoxy-4-nitropyridine
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