Using CN(C)C=O, CC(C)(C)OC(=O)Nc1cccc(O[Si](C)(C)C(C)(C)C)c1 to produce CC(C)(C)OC(=O)Nc1cc(O[Si](C)(C)C(C)(C)C)ccc1C=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.