Using Nc1ccc2ccc(S(=O)(=O)Nc3ccc(Cl)c(C(=O)O)c3)cc2c1, CO to produce COC(=O)c1cc(NS(=O)(=O)c2ccc3ccc(N)cc3c2)ccc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.