Ethyl 5-(3,4-dichlorophenyl)-6-methoxynicotinate
Ethyl 6-(3,4-dichlorophenyl)-5-methoxypicolinate
Ethyl 6-(3,4-dichlorophenyl)-2-fluoronicotinate
Ethyl 2-chloro-5-(3,4-dichlorophenyl)nicotinate
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