Using CCOC(=O)CCNCC(C(=O)OCC)c1ccccc1, BrCc1ccccc1 to produce CCOC(=O)CCN(Cc1ccccc1)CC(C(=O)OCC)c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.