5-(Difluoromethyl)-4-hydroxy-2-methoxy-3-(trifluoromethoxy)pyridine
3,5-Dihydroxy-2-(trifluoromethoxy)pyridine-6-acetonitrile
4-Chloro-3-(difluoromethyl)-2-iodo-6-methylpyridine
3-Chloro-2-(4-fluorophenyl)pyridine-4-acetonitrile
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