3-Methyl-2-nitro-6-(trifluoromethoxy)pyridine-5-sulfonyl chloride
6-Methyl-2-nitro-3-(trifluoromethoxy)pyridine-4-sulfonyl chloride
Methyl 4-(difluoromethyl)-3-nitro-2-(trifluoromethoxy)pyridine-5-acetate
3-(Difluoromethyl)-5-nitro-4-(trifluoromethoxy)pyridine-2-acetic acid