Using CCOC(=O)c1ccc(N2CCNCC2)cc1, O=C(CBr)c1ccc(Cl)cc1 to produce CCOC(=O)c1ccc(N2CCN(CC(=O)c3ccc(Cl)cc3)CC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.