Using O=S(=O)(Nc1cccc2cc[nH]c12)c1cccc(Cl)c1, CN(C)C=O to produce O=Cc1c[nH]c2c(NS(=O)(=O)c3cccc(Cl)c3)cccc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.