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