Using Nc1cc(Cl)c(O)c(Cl)c1, COc1ccc2nc(Cl)sc2c1 to produce COc1ccc2nc(Oc3c(Cl)cc(N)cc3Cl)sc2c1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.