Ethyl 3-amino-6-nitro-4-(trifluoromethoxy)pyridine-2-acetate
Ethyl 5-amino-2-nitro-4-(trifluoromethoxy)pyridine-3-acetate
Ethyl 5-amino-2-nitro-3-(trifluoromethoxy)pyridine-6-acetate
Ethyl 5-amino-2-nitro-3-(trifluoromethoxy)pyridine-4-acetate
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