Methyl 3-nitro-2-(trifluoromethoxy)pyridine-6-carboxylate
3,6-Diamino-4-(trifluoromethoxy)pyridine-2-methanol
Methyl 6-nitro-3-(trifluoromethoxy)pyridine-2-carboxylate
2,5-Diamino-3-(trifluoromethoxy)pyridine-4-methanol
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