3-(Bromomethyl)-4-(difluoromethyl)-5-(trifluoromethoxy)pyridine-2-sulfonyl chloride
Ethyl 3-(bromomethyl)-5-(difluoromethyl)-2-(trifluoromethoxy)pyridine-4-acetate
Ethyl 5-(bromomethyl)-4-(difluoromethyl)-3-(trifluoromethoxy)pyridine-2-acetate
Ethyl 3-(bromomethyl)-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine-5-acetate