Using BrCc1ccccc1, S=c1c2[nH]cnc2c2cccnc2n1-c1ccccc1 to produce c1ccc(CSc2c3ncnc-3c3cccnc3n2-c2ccccc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.