Using CCOC(=O)c1csc(NC(=O)NCc2ccc(Cl)c(Cl)c2)n1 to produce O=C(NCc1ccc(Cl)c(Cl)c1)Nc1nc(C(=O)O)cs1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.