5-Cyano-2,3-diamino-6-(trifluoromethoxy)pyridine
6-Cyano-2,4-diamino-3-(trifluoromethoxy)pyridine
5-Cyano-2,4-diamino-3-(trifluoromethoxy)pyridine
3-Cyano-2,4-diamino-5-(trifluoromethoxy)pyridine
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