Methyl 5-hydroxy-3-nitro-2-(trifluoromethoxy)pyridine-4-acetate
5-(Bromomethyl)-3-iodo-4-methoxy-2-(trifluoromethoxy)pyridine
3-(Bromomethyl)-5-iodo-2-methoxy-4-(trifluoromethoxy)pyridine
Methyl 5-(difluoromethyl)-2-hydroxy-3-(trifluoromethoxy)pyridine-4-acetate