Using CN1CCn2c(ccc2S(C)(=O)=O)C12CCN(C(=O)OCc1ccccc1)CC2 to produce CN1CCn2c(ccc2S(C)(=O)=O)C12CCNCC2, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.