Using COc1cc2cn(COCC[Si](C)(C)C)nc2cc1OC, CC(=O)Cl to produce COc1cc2nn(COCC[Si](C)(C)C)c(C(C)=O)c2cc1OC, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.