Using CCOC(=O)C[C@H]1O[C@H](c2cccc3ccccc23)c2cc(Cl)ccc2N(CC(C)(C)CO[Si](c2ccccc2)(c2ccccc2)C(C)(C)C)C1=O to produce CCOC(=O)C[C@H]1O[C@H](c2cccc3ccccc23)c2cc(Cl)ccc2N(CC(C)(C)CO)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.