Using CI, Cc1cccc(SC2(CO)CCN(C(=O)OC(C)(C)C)CC2)c1 to produce COCC1(Sc2cccc(C)c2)CCN(C(=O)OC(C)(C)C)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.