Ethyl 4-(difluoromethyl)-3-methoxypyridine-5-acetate
Ethyl 4-(difluoromethyl)-2-methoxypyridine-5-acetate
4-(Chloromethyl)-5-(difluoromethyl)-2-(trifluoromethoxy)pyridine-3-acetic acid
3-(Chloromethyl)-6-(difluoromethyl)-4-(trifluoromethoxy)pyridine-2-sulfonyl chloride