Using CCOC(=O)c1c(I)nn([C@H]2COC[C@H]2NC(=O)OC(C)(C)C)c1C(=O)OCC to produce CCOC(=O)c1c(I)nn2c1C(=O)N[C@@H]1COC[C@@H]12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.