Using O=S(=O)(c1cc(Cl)cc(Cl)c1)n1ccc2c(N3CCN(Cc4ccccc4)CC3)cccc21 to produce O=S(=O)(c1cc(Cl)cc(Cl)c1)n1ccc2c(N3CCNCC3)cccc21, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.