Using CCOC(=O)C(=NOCC(=O)OCC(Cl)(Cl)Cl)C(=O)CCl, NC(N)=S to produce CCOC(=O)C(=NOCC(=O)OCC(Cl)(Cl)Cl)c1csc(N)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.