Using NC(=O)CS, CC(C)Cn1c(CN)c(-c2ccccc2)c2cc(Br)ccc2c1=O to produce CC(C)Cn1c(CN)c(-c2ccccc2)c2cc(SCC(N)=O)ccc2c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.