5-Chloro-3-fluoro-2-(trifluoromethoxy)pyridine
3-Chloro-5-fluoro-4-(trifluoromethoxy)pyridine
4-Chloro-3-(difluoromethyl)-5-(trifluoromethoxy)pyridine
4-Chloro-3-(difluoromethyl)-2-(trifluoromethoxy)pyridine
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