Using COc1ccccc1N1CCNCC1, O=CCC(C(=O)c1ccccc1)c1ccccc1 to produce COc1ccccc1N1CCN(CCC(C(=O)c2ccccc2)c2ccccc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.