5-(Difluoromethyl)-3-nitro-2-(trifluoromethoxy)-4-(trifluoromethyl)pyridine
3-Amino-2-nitro-4-(trifluoromethoxy)pyridine-5-acetic acid
Ethyl 2-amino-3-(bromomethyl)-6-(difluoromethyl)pyridine-4-acetate
Methyl 6-fluoro-3-nitro-4-(trifluoromethoxy)pyridine-2-acetate