2-Amino-3-(difluoromethyl)-5-nitro-6-(trifluoromethoxy)pyridine
2-Amino-3-(difluoromethyl)-4-nitro-5-(trifluoromethoxy)pyridine
Methyl 3-amino-5-methyl-6-(trifluoromethoxy)pyridine-2-carboxylate
3-Amino-6-(fluoromethyl)-4-nitro-2-(trifluoromethoxy)pyridine