Ethyl 6-(perchlorophenyl)-2-(trifluoromethyl)nicotinate
Ethyl 2-(perchlorophenyl)-6-(trifluoromethyl)nicotinate
Ethyl 2-(perchlorophenyl)-5-(trifluoromethyl)nicotinate
Ethyl 2-(perchlorophenyl)-4-(trifluoromethyl)nicotinate
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