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