Using COC(=O)c1sc(-c2ccccc2)cc1N, ClCc1ccc(Cl)cc1Cl to produce COC(=O)c1sc(-c2ccccc2)cc1NCc1ccc(Cl)cc1Cl, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.