Using CSc1nc2[nH]cnc(=O)c2s1, Clc1cccc(CBr)c1Cl to produce CSc1nc2c(s1)c(=O)ncn2Cc1cccc(Cl)c1Cl, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.