Using CCN=C=NCCCN(C)C, CC(C)(C)OC(=O)n1cc(I)c2cc(C(=O)O)ccc21 to produce CC(C)(C)OC(=O)n1cc(I)c2cc(C(N)=O)ccc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.