Using CN(CCC(c1ccccc1)c1ccc2c(ccn2S(C)(=O)=O)c1)C(=O)OC(C)(C)C to produce CNCCC(c1ccccc1)c1ccc2c(ccn2S(C)(=O)=O)c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.