Using CSc1cccc2c1c(Cc1ccc(Cl)cc1)cn2[Si](C(C)C)(C(C)C)C(C)C to produce CSc1cccc2[nH]cc(Cc3ccc(Cl)cc3)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.