Using CC(C)(C)OC(=O)N1CCc2[nH]c(-c3ccnc(N)n3)cc2C1=O, O=C1CCC(=O)N1I to produce CC(C)(C)OC(=O)N1CCc2[nH]c(-c3ccnc(N)n3)c(I)c2C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.