Using COC(=O)c1ccc(N(C)CC2(O)CCN(CCc3ccc(S(C)(=O)=O)cc3)CC2)cc1 to produce CN(CC1(O)CCN(CCc2ccc(S(C)(=O)=O)cc2)CC1)c1ccc(C(=O)O)cc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.