Using c1ccc(P(c2ccccc2)c2ccccc2)cc1, CSc1ncc2c(Cl)n[nH]c2n1 to produce CSc1ncc2c(Cl)nn(C(C)C)c2n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.