Using COC(=O)Cc1c[nH]c2ccccc12, C[Si](C)(C)CCOCCl to produce COC(=O)Cc1cn(COCC[Si](C)(C)C)c2ccccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.