Ethyl 4-chloro-2-fluoropyridine-6-acetate
4-Amino-2-cyano-3-(difluoromethyl)pyridine-5-carbonyl chloride
3-(Difluoromethyl)-6-methoxy-2-nitropyridine-4-sulfonyl chloride
5-(Chloromethyl)-2-methyl-4-nitro-3-(trifluoromethoxy)pyridine
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