Using ClCc1ccc2ccccc2n1, S=c1[nH]c2cccc3c2n1CCC3 to produce c1ccc2nc(CSc3nc4cccc5c4n3CCC5)ccc2c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.