Methyl 4-(bromomethyl)-3-(difluoromethyl)-5-fluoropyridine-2-carboxylate
4-(Difluoromethyl)-3-fluoro-2-methyl-6-(trifluoromethyl)pyridine
2-(Bromomethyl)-6-(difluoromethyl)-4-fluoropyridine-3-acetic acid
Methyl 4-bromo-6-(difluoromethyl)-3-iodopyridine-2-carboxylate