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