Methyl 6-(difluoromethyl)-3-fluoro-4-hydroxypyridine-2-carboxylate
Ethyl 3-(difluoromethyl)-4-fluoro-5-iodopyridine-2-acetate
Methyl 6-(difluoromethyl)-4-fluoro-3-hydroxypyridine-2-carboxylate
2-(Difluoromethyl)-3-fluoro-5-methoxypyridine-6-acetic acid