3-Amino-2-chloro-6-(difluoromethyl)-4-nitropyridine
3-(Difluoromethyl)-6-fluoro-4-hydroxypyridine-2-carbonyl chloride
6-(2,3,5-Trichlorophenyl)nicotinic acid
2-Chloro-5-(difluoromethyl)-3-nitropyridine-6-sulfonyl chloride
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