2-Bromo-3-cyano-5-(difluoromethyl)-4-fluoropyridine
3-Bromo-4-cyano-2-(difluoromethyl)-5-methoxypyridine
2-Bromo-3-chloro-4-(difluoromethyl)-5-(trifluoromethyl)pyridine
6-Bromo-2-cyano-4-(difluoromethyl)-3-methoxypyridine
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