Using CC(C)[Si](C(C)C)(C(C)C)n1cc(C(O)c2ccc(C(=O)Nc3ccc(Cl)cc3)nc2)c2cccnc21 to produce O=C(Nc1ccc(Cl)cc1)c1ccc(Cc2c[nH]c3ncccc23)cn1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.