3-Iodo-4-nitro-2-(trifluoromethoxy)pyridine
4-(3-Fluoro-5-(difluoromethoxy)benzoyl)pyridine
4-(2-Fluoro-6-(difluoromethoxy)benzoyl)pyridine
3-Iodo-2-nitro-4-(trifluoromethoxy)pyridine
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