Using CCOC(=O)CN1CCC(Br)C1=O, COc1ccc(C(=O)C2CCNCC2)cc1 to produce CCOC(=O)CN1CCC(N2CCC(C(=O)c3ccc(OC)cc3)CC2)C1=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.