Using O=C1c2ccccc2S(=O)(=O)N1CCl, Sc1nnnn1C1CCCCC1 to produce O=C1c2ccccc2S(=O)(=O)N1C(Sc1nnn[nH]1)C1CCCCC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.