Methyl 5-(difluoromethyl)-2-nitro-3-(trifluoromethoxy)pyridine-4-acetate
Methyl 4-(difluoromethyl)-3-nitro-2-(trifluoromethoxy)pyridine-6-acetate
2-(Aminomethyl)-4-methyl-3-(trifluoromethoxy)pyridine-5-methanol
Methyl 4-(difluoromethyl)-5-nitro-3-(trifluoromethoxy)pyridine-2-acetate