Using CCOC(=O)CSc1nc(Cl)cc(Cl)n1, Clc1ccc(N2CCNCC2)cc1 to produce CCOC(=O)CSc1nc(Cl)cc(N2CCN(c3ccc(Cl)cc3)CC2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.