Using Cc1ccn2nc(S(=O)(=O)Nc3c(Cl)cccc3Cl)nc2n1, O=C(Cl)c1ccccc1 to produce Cc1ccn2nc(S(=O)(=O)N(C(=O)c3ccccc3)c3c(Cl)cccc3Cl)nc2n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.