2,5-Diamino-3-nitro-4-(trifluoromethoxy)pyridine
2-Amino-5-chloro-3-hydroxy-6-(trifluoromethoxy)pyridine
4,6-Diamino-3-nitro-2-(trifluoromethoxy)pyridine
2-Amino-4-chloro-6-hydroxy-3-(trifluoromethoxy)pyridine
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