Using CC1(C)CC(=O)Nc2c(COC3CCCCO3)cccc21, C[Si](C)(C)CCOCCl to produce CC1(C)CC(=O)N(COCC[Si](C)(C)C)c2c(COC3CCCCO3)cccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.