Using COc1cccc(CN2Cc3cc(OC)c(O[Si](C(C)C)(C(C)C)C(C)C)cc3CC2(C)C)c1 to produce COc1cccc(CN2Cc3cc(OC)c(O)cc3CC2(C)C)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.