Using ICI, CCCc1nc(C#N)c(N)n1CCOCCNC(=O)OC(C)(C)C to produce CCCc1nc(C#N)c(I)n1CCOCCNC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.