Using COc1ccc(CN2CCNCC2)cc1, CCOC(=O)c1ccc(CCBr)cc1 to produce CCOC(=O)c1ccc(CCN2CCN(Cc3ccc(OC)cc3)CC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.