4,6-Dimethoxy-3-nitro-2-(trifluoromethoxy)pyridine
2-Amino-6-chloro-4-(trifluoromethoxy)pyridine-3-sulfonamide
2,4-Dimethoxy-3-nitro-5-(trifluoromethoxy)pyridine
4-Amino-2-iodo-5-(trifluoromethoxy)pyridine-3-sulfonamide
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