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