2-(Difluoromethyl)-3-hydroxy-4-methoxy-6-(trifluoromethoxy)pyridine
3-(Fluoromethyl)-6-hydroxy-2-methoxy-5-(trifluoromethoxy)pyridine
4-Fluoro-5-nitro-2-(trifluoromethoxy)-3-(trifluoromethyl)pyridine
4-(Fluoromethyl)-3-hydroxy-6-methoxy-2-(trifluoromethoxy)pyridine