Using CC(C)(C)[Si](C)(C)Cl, COC(=O)c1cn(COCC[Si](C)(C)C)c(CO)n1 to produce COC(=O)c1cn(COCC[Si](C)(C)C)c(CO[Si](C)(C)C(C)(C)C)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.