Ethyl 3,5-bis(2,4,6-trichlorophenyl)picolinate
Ethyl 3,5-bis(2,3,4-trichlorophenyl)picolinate
Ethyl 5,6-bis(3,4,5-trichlorophenyl)nicotinate
Ethyl 5,6-bis(2,4,6-trichlorophenyl)nicotinate
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