Methyl 3-(2,3-difluorophenyl)-5-(trifluoromethyl)picolinate
Methyl 3-(perfluorophenyl)-2-(trifluoromethyl)isonicotinate
Methyl 2-(2,3-difluorophenyl)-6-(trifluoromethyl)isonicotinate
Methyl 2-(perfluorophenyl)-3-(trifluoromethyl)isonicotinate
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