Using Clc1ccc(CCNCCc2ccc(Cl)cc2)cc1, O=C(NCCCBr)Nc1ccccc1 to produce O=C(NCCCN(CCc1ccc(Cl)cc1)CCc1ccc(Cl)cc1)Nc1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.