3-Methyl-6-nitro-4-(trifluoromethoxy)pyridine-2-sulfonyl chloride
6-(Difluoromethyl)-4-methoxy-3-(trifluoromethoxy)-2-(trifluoromethyl)pyridine
5-Methyl-2-nitro-3-(trifluoromethoxy)pyridine-4-sulfonyl chloride
2-(Difluoromethyl)-4-methoxy-3-(trifluoromethoxy)-5-(trifluoromethyl)pyridine