Using O=S(=O)(Cl)c1ccc(Cl)s1, CCOC(=O)CN1CC[C@@H](N)C1 to produce CCOC(=O)CN1CC[C@@H](NS(=O)(=O)c2ccc(Cl)s2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.