3-Amino-2-cyano-6-nitro-4-(trifluoromethoxy)pyridine
6-Amino-3-cyano-2-nitro-4-(trifluoromethoxy)pyridine
3-Amino-6-cyano-2-methyl-4-(trifluoromethoxy)pyridine
5-Amino-2-cyano-4-methyl-3-(trifluoromethoxy)pyridine
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