Using CC(C)(C)OC(=O)NCCOCc1csc(NC(=O)NCc2ccc(Cl)c(Cl)c2)n1 to produce NCCOCc1csc(NC(=O)NCc2ccc(Cl)c(Cl)c2)n1, please predict the solvent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.