Using CS(=O)(=O)NCCCBr, Nc1ncnc2[nH]c(Sc3cc4c(cc3I)OCO4)nc12 to produce CS(=O)(=O)NCCCn1c(Sc2cc3c(cc2I)OCO3)nc2c(N)ncnc21, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.