2,3,4-Tris(perfluorophenyl)pyridine
4-(Difluoromethyl)-3-methyl-5-(trifluoromethoxy)pyridine-2-carboxylic acid
3,5-Bis(2,3-difluorophenyl)-4-methoxypyridine
4-(Difluoromethyl)-6-methyl-2-(trifluoromethoxy)pyridine-3-carboxylic acid
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