Using CCSc1nc2c(C)ccnc2[nH]1, N#Cc1cc(Cl)cn1-c1ccc(CBr)cc1 to produce CCSc1nc2c(C)ccnc2n1Cc1ccc(-n2cc(Cl)cc2C#N)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.