Methyl 5-(difluoromethyl)-3-fluoro-4-hydroxypyridine-2-carboxylate
2-(Bromomethyl)-3-(difluoromethyl)-4-fluoro-6-iodopyridine
Methyl 2-(difluoromethyl)-6-fluoro-3-hydroxypyridine-4-carboxylate
4-(Aminomethyl)-3-(difluoromethyl)-6-fluoro-2-iodopyridine