Ethyl 6-chloro-5-(2,3-dichlorophenyl)nicotinate
Ethyl 5-amino-2-(2,3-dichlorophenyl)isonicotinate
Ethyl 3-amino-6-(2,3-dichlorophenyl)picolinate
Ethyl 2-chloro-6-(2,3-dichlorophenyl)isonicotinate
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