5-Bromo-3-nitro-4-(trifluoromethoxy)pyridine-2-sulfonyl chloride
3-(Aminomethyl)-4-chloro-2-methyl-5-(trifluoromethoxy)pyridine
4-Bromo-2-(difluoromethyl)-6-nitro-3-(trifluoromethoxy)pyridine
3-(Aminomethyl)-2-chloro-5-methyl-6-(trifluoromethoxy)pyridine