4-Cyano-3-nitro-5-(trifluoromethoxy)pyridine-2-sulfonamide
3-Fluoro-6-hydroxy-2-nitro-5-(trifluoromethoxy)pyridine
2-Cyano-3-nitro-4-(trifluoromethoxy)pyridine-6-carboxaldehyde
3-(Aminomethyl)-6-cyano-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine
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