Using C[Si](C)(C)CCOCCl, CCc1n[nH]c2cc(C(=O)N(C)OC)ccc12 to produce CCc1c2ccc(C(=O)N(C)OC)cc2nn1COCC[Si](C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.