Using C[Si](C)(C)CCOCCl, COC(=O)c1cc2c([nH]1)CCCC2=O to produce COC(=O)c1cc2c(n1COCC[Si](C)(C)C)CCCC2=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.