Using COC(CN1CCN(C(=O)[O-])C(C(C)(C)C)C1)c1ccc2c(c1C)COC2=O to produce COC(CN1CCNCC1)c1ccc2c(c1C)COC2=O, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.