Using CC(C)(C)[Si](OC[C@H](C1CC1)N1C(=O)[C@@](C)(CC(=O)O)C[C@H](c2cccc(Cl)c2)[C@H]1c1ccc(Cl)cc1)(c1ccccc1)c1ccccc1 to produce C[C@]1(CC(=O)O)C[C@H](c2cccc(Cl)c2)[C@@H](c2ccc(Cl)cc2)N([C@H](CO)C2CC2)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.