Using CC(C)(C)[Si](C)(C)OCC=O, N[C@H]1CCN(c2ccc3c(C(=O)NCC4(O)CCCCCC4)c(Cl)ccc3n2)C1 to produce CC(C)(C)[Si](C)(C)OCCN[C@H]1CCN(c2ccc3c(C(=O)NCC4(O)CCCCCC4)c(Cl)ccc3n2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.