Using CCOC(=O)C(CNC(=O)OC(C)(C)C)c1ccc(CO[Si](C(C)C)(C(C)C)C(C)C)cc1 to produce CC(C)[Si](OCc1ccc(C(CNC(=O)OC(C)(C)C)C(=O)O)cc1)(C(C)C)C(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.