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