Ethyl 2-fluoro-6-(perfluorophenyl)isonicotinate
Ethyl 2-fluoro-5-(perfluorophenyl)isonicotinate
Ethyl 6-chloro-5-(2,4,5-trichlorophenyl)picolinate
Ethyl 6-chloro-3-(2,4,5-trichlorophenyl)picolinate
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