Using C[Si](C)(C)CCOC(=O)C(Cc1ccccc1C=O)N1C(=O)c2ccccc2C1=O, CC(C)C[C@H](N)C(=O)OC(C)(C)C to produce CC(C)CC(NCc1ccccc1CC(C(=O)OCC[Si](C)(C)C)N1C(=O)c2ccccc2C1=O)C(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.