Using ClCc1ccc(Cl)cc1, Oc1ccc(Oc2cccc(Cl)c2)cc1Cl to produce Clc1ccc(COc2ccc(Oc3cccc(Cl)c3)cc2Cl)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.