Using COc1ccc2ncc(Cl)c(C(=O)CBr)c2n1, CC(C)(C)OC(=O)NCCC(N)=S to produce COc1ccc2nccc(-c3csc(CCNC(=O)OC(C)(C)C)n3)c2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.