Using CCOC(=O)c1ccc(Cl)c(Oc2cc(NC(=S)NC(=O)c3ccccc3)ncc2Br)c1 to produce CCOC(=O)c1ccc(Cl)c(Oc2cc(NC(N)=S)ncc2Br)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.