Using CCCP(=O)(CCC)c1ccc(Nc2nc(I)nc3c2ncn3C2CCCCO2)cc1, CC(C)I to produce CCCP(=O)(CCC)c1ccc(Nc2nc(C(C)C)nc3c2ncn3C2CCCCO2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.