4-Amino-2-methoxy-6-nitro-3-(trifluoromethoxy)pyridine
4-Amino-6-chloro-3-nitro-2-(trifluoromethoxy)pyridine
6-Amino-2-(chloromethyl)-4-methoxy-3-(trifluoromethoxy)pyridine
4-Amino-2-chloro-3-nitro-5-(trifluoromethoxy)pyridine
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