4-Amino-3-methoxy-5-nitro-2-(trifluoromethoxy)pyridine
4-Amino-2-methoxy-5-nitro-3-(trifluoromethoxy)pyridine
5-Amino-3-methoxy-2-nitro-4-(trifluoromethoxy)pyridine
3-Amino-5-methoxy-4-nitro-2-(trifluoromethoxy)pyridine
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