2-(Difluoromethyl)-4-nitro-5-(trifluoromethyl)pyridine-3-sulfonyl chloride
Methyl 2-amino-6-fluoro-4-(trifluoromethoxy)pyridine-3-carboxylate
5-(Aminomethyl)-2-bromo-3-(difluoromethyl)-4-iodopyridine
Ethyl 4-amino-2-(fluoromethyl)-3-(trifluoromethoxy)pyridine-5-carboxylate