Using CI, O=C(c1cnccc1Oc1cc(Cl)ccc1Cl)N1CCNc2ccccc21 to produce CN1CCN(C(=O)c2cnccc2Oc2cc(Cl)ccc2Cl)c2ccccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.