4-Fluoro-3-(difluoromethyl)-2-(trifluoromethoxy)pyridine
4-(3-Chloro-2-nitrobenzoyl)pyridine
4-Fluoro-2-(difluoromethyl)-3-(trifluoromethoxy)pyridine
4-Iodo-2-methoxy-3-(trifluoromethoxy)pyridine
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