Using C[Si](C)(C)CCOCCl, CCCCc1ncc(/C=C2\NC(=O)NC2=O)n1Cc1ccc(C(=O)OC)cc1 to produce CCCCc1ncc(/C=C2\NC(=O)N(COCC[Si](C)(C)C)C2=O)n1Cc1ccc(C(=O)OC)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.