Methyl 6-(bromomethyl)-2-(difluoromethyl)-3-hydroxypyridine-4-acetate
4-(Bromomethyl)-5-(difluoromethyl)-2-hydroxypyridine-3-acetic acid
6-(Difluoromethyl)-4-iodo-2-methoxy-3-nitropyridine
Ethyl 4-(bromomethyl)-3-(difluoromethyl)-2-hydroxypyridine-6-acetate