4-Fluoro-5-iodo-2-nitro-3-(trifluoromethoxy)pyridine
4-(Difluoromethyl)-2-fluoro-3-nitro-5-(trifluoromethoxy)pyridine
5-(Difluoromethyl)-3-fluoro-4-iodo-2-(trifluoromethoxy)pyridine
3-(Difluoromethyl)-5-fluoro-2-iodo-4-(trifluoromethoxy)pyridine
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