Methyl 6-(bromomethyl)-4-(difluoromethyl)-2-methoxypyridine-3-carboxylate
Methyl 2-(bromomethyl)-3-(difluoromethyl)-5-methoxypyridine-6-carboxylate
3-(Bromomethyl)-6-(difluoromethyl)-4-methoxypyridine-2-carboxylic acid
2-(Bromomethyl)-5-(difluoromethyl)-3-methoxypyridine-6-carboxylic acid