Using CC(O)c1csc2ccccc12, CC(C)(C)OC(=O)N1CCC(=O)CC1 to produce CC(O)c1c(C2(O)CCN(C(=O)OC(C)(C)C)CC2)sc2ccccc12, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.