Ethyl 2-(2,3-difluorophenyl)-6-methylisonicotinate
Ethyl 2-(2,3-difluorophenyl)-5-methylisonicotinate
Ethyl 2-(2,3-difluorophenyl)-3-methylisonicotinate
Ethyl 6-(2,3-difluorophenyl)-5-methoxypicolinate
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