Using CC(C)(C)OC(=O)N1CCCc2cc(I)ccc21, O=C1C=CCCO1 to produce CC(C)(C)OC(=O)N1CCCc2cc(C3CCOC(=O)C3)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.