Using Cc1ccc(S(=O)(=O)OCC2CCCN(C(=O)OC(C)(C)C)C2)cc1 to produce Cc1ccc(S(=O)(=O)OCC2CCCNC2)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.