5-(Bromomethyl)-3-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-2-acetic acid
5-(Difluoromethyl)-2-nitro-3-(trifluoromethoxy)pyridine-6-sulfonyl chloride
4-(Difluoromethyl)-6-nitro-2-(trifluoromethoxy)pyridine-3-sulfonyl chloride
3-(Bromomethyl)-5-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-4-acetic acid