Methyl 4-bromo-5-(difluoromethyl)-3-methylpyridine-2-carboxylate
4-Bromo-2-(difluoromethyl)-5-nitro-3-(trifluoromethyl)pyridine
Methyl 4-bromo-3-(difluoromethyl)-2-methylpyridine-6-carboxylate
3-Bromo-5-(difluoromethyl)-6-nitro-2-(trifluoromethyl)pyridine