Using NCC(O)c1ccccc1, COc1ccc(S(=O)(=O)Nc2ccc(N3CCC(=O)CC3)cc2)cc1 to produce COc1ccc(S(=O)(=O)Nc2ccc(N3CCC(NCC(O)c4ccccc4)CC3)cc2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.