6-Bromo-4-chloro-2-hydroxy-3-(trifluoromethoxy)pyridine
3-Amino-2-nitro-4-(trifluoromethoxy)pyridine-6-acetic acid
2-Bromo-4-chloro-5-hydroxy-3-(trifluoromethoxy)pyridine
2-Amino-6-nitro-5-(trifluoromethoxy)pyridine-3-acetic acid
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