Using CCOC(=O)c1ccc2c(c1)N(S(=O)(=O)c1cc(Cl)ccc1OC)CCN2C(=O)OC(C)(C)C to produce COc1ccc(Cl)cc1S(=O)(=O)N1CCN(C(=O)OC(C)(C)C)c2ccc(C(=O)O)cc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.