Using COC(=O)c1nc(-c2ccc(S(C)(=O)=O)cc2)ccc1OCC1CCN(C(=O)OC(C)C)CC1 to produce CC(C)OC(=O)N1CCC(COc2ccc(-c3ccc(S(C)(=O)=O)cc3)nc2CO)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.