Using COC(=O)NCCO[C@@H](c1cccc(Cl)c1)[C@@H]1CCCN(C(=O)N[C@@H](CC2CCOCC2)CN(C)C(=O)OCC[Si](C)(C)C)C1 to produce COC(=O)NCCO[C@@H](c1ccccc1)[C@@H]1CCCN(C(=O)N[C@@H](CC2CCOCC2)CN(C)C(=O)OCC[Si](C)(C)C)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.