5-Amino-3-nitro-2-(trifluoromethoxy)pyridine-4-carboxylic acid
3-Amino-5-nitro-4-(trifluoromethoxy)pyridine-2-carboxylic acid
5-Amino-4-nitro-2-(trifluoromethoxy)pyridine-3-carboxylic acid
2-Amino-6-iodo-5-(trifluoromethoxy)pyridine-3-acetic acid
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