Using c1ccc(N2CCNCC2)cc1, COc1ccc(-c2cc(CCC=O)nn2-c2ccccc2)cc1 to produce COc1ccc(-c2cc(CCCN3CCN(c4ccccc4)CC3)nn2-c2ccccc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.