Using CC(C)(C)OC(=O)N1CCNCC1, Cc1cc2c(C=O)cccc2n1S(=O)(=O)c1ccccc1 to produce Cc1cc2c(CN3CCN(C(=O)OC(C)(C)C)CC3)cccc2n1S(=O)(=O)c1ccccc1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.