Using COc1c(O[Si](C(C)C)(C(C)C)C(C)C)cccc1C(=O)C1CCN(C(=O)OC(C)(C)C)CC1 to produce COc1c(O[Si](C(C)C)(C(C)C)C(C)C)cccc1C(=O)C1CCNCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.