Using CCOC(=O)c1c(I)nn(CC(NC(=O)OC(C)(C)C)C2CC2)c1C(=O)OCC to produce CCOC(=O)c1c(I)nn2c1C(=O)NC(C1CC1)C2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.