2-(Bromomethyl)-3-(difluoromethyl)-4-(trifluoromethoxy)pyridine-5-sulfonyl chloride
3-(Difluoromethyl)-4-nitro-2-(trifluoromethoxy)pyridine-6-sulfonamide
Ethyl 4-(bromomethyl)-6-(difluoromethyl)-2-(trifluoromethoxy)pyridine-3-acetate
Ethyl 4-(bromomethyl)-2-(difluoromethyl)-5-(trifluoromethoxy)pyridine-3-acetate