6-Hydroxy-2-methoxy-4-nitro-3-(trifluoromethoxy)pyridine
2-(Chloromethyl)-4-(difluoromethyl)-6-fluoro-3-(trifluoromethoxy)pyridine
2-Hydroxy-6-methoxy-3-nitro-4-(trifluoromethoxy)pyridine
6-Hydroxy-3-methoxy-4-nitro-2-(trifluoromethoxy)pyridine
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