Using COc1ccccc1N1CCNCC1, CS(=O)(=O)OCC1CCCN(CC2(c3ccc(Cl)cc3)CC2)C1 to produce COc1ccccc1N1CCN(CC2CCCN(CC3(c4ccc(Cl)cc4)CC3)C2)CC1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.