Using COc1cccc(C2=Cc3nc4ccccc4cc3CC2CN(C)C)c1, C[Si](C)(C)Cl to produce COc1cccc(C2=C(CN(C)C)CCc3nc4ccccc4cc32)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.