Ethyl 3-(difluoromethyl)-6-hydroxy-4-(trifluoromethyl)pyridine-2-acetate
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