5-Amino-3-(difluoromethyl)-2-hydroxy-4-(trifluoromethoxy)pyridine
4-Amino-2-hydroxy-3-nitro-6-(trifluoromethoxy)pyridine
5-Amino-4-(difluoromethyl)-2-hydroxy-3-(trifluoromethoxy)pyridine
3-Amino-5-hydroxy-2-nitro-6-(trifluoromethoxy)pyridine
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