Using COC(=O)CCC1CNc2c(NC(=O)C(C)(C)C)c(C)cc(C)c21, CCCCCCCCI to produce CCCCCCCCN1CC(CCC(=O)OC)c2c(C)cc(C)c(NC(=O)C(C)(C)C)c21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.