Using O=Cc1ccc(I)cc1, NCC1=C2C(=O)N=C(N)N=C2N=C1 to produce NC1=NC(=O)C2=C(CNCc3ccc(I)cc3)C=NC2=N1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.