Using CCC(Br)(C=O)C(C)Br, Cn1nnnc1SCC1=C(C(=O)OC(c2ccccc2)c2ccccc2)N2C(=O)[C@@H](N)[C@H]2SC1 to produce CCC(Br)(C=N[C@@H]1C(=O)N2C(C(=O)OC(c3ccccc3)c3ccccc3)=C(CSc3nnnn3C)CS[C@H]12)C(C)Br, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.