2-Cyano-6-(trifluoromethoxy)pyridine-4-carbonyl chloride
3-(Difluoromethyl)-6-methoxy-4-nitropyridine-2-carbonyl chloride
5-(Difluoromethyl)-2-methoxy-3-nitropyridine-6-carbonyl chloride
6-Cyano-3-(trifluoromethoxy)pyridine-2-carbonyl chloride
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