5-Chloro-2,3-diamino-4-(trifluoromethoxy)pyridine
4,6-Diamino-2-fluoro-3-(trifluoromethoxy)pyridine
2,4-Diamino-5-fluoro-3-(trifluoromethoxy)pyridine
2,3-Diamino-6-fluoro-5-(trifluoromethoxy)pyridine
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