Using O=S(Cl)Cl, Cn1c(=O)cc(N2CCCC(N)C2)n(Cc2ccccc2C#N)c1=O to produce Cn1c(=O)c(Cl)c(N2CCC[C@@H](N)C2)n(Cc2ccccc2C#N)c1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.