Using Cc1cn(-c2cc(C)c3[nH]c(=O)ccc3c2)c(C)n1, ClI to produce Cc1nc(C)n(-c2cc(C)c3[nH]c(=O)ccc3c2)c1I, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.