Using COc1ccc2c(c1)CCN(C1CCN(c3cc(C(=O)O)ncn3)CC1)C(=O)N2, Nc1ccccc1 to produce COc1ccc2c(c1)CCN(C1CCN(c3cc(C(=O)Nc4ccccc4)ncn3)CC1)C(=O)N2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.