3,5-Dihydroxy-2-iodo-4-(trifluoromethoxy)pyridine
3,4-Dihydroxy-5-iodo-2-(trifluoromethoxy)pyridine
3-(Chloromethyl)-2,4-diamino-6-(trifluoromethoxy)pyridine
6-(Chloromethyl)-2,3-diamino-4-(trifluoromethoxy)pyridine
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