Using COC(=O)C1CN(S(=O)(=O)c2cccc(OC)c2)C(=O)N1c1ccccc1 to produce COc1cccc(S(=O)(=O)N2CC(C(=O)O)N(c3ccccc3)C2=O)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.