Using CCC(CC)N1CCN(C(=O)c2ccc(C=O)cc2)CC1, NCc1ccccc1 to produce CCC(CC)N1CCN(C(=O)c2ccc(CNCc3ccccc3)cc2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.