Using OB(O)c1ccc(Cl)cc1Cl, CCN(CC)c1cnn2c(I)cccc12 to produce CCN(CC)c1cnn2c(-c3ccc(Cl)cc3Cl)cccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.