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