Using N#Cc1cc(N)c(Cl)c(N2CC[C@@H](N)[C@H](O)C2)c1, O=C(Cl)CCl to produce N#Cc1cc(N)c(Cl)c(N2CC[C@@H](NC(=O)CCl)[C@H](O)C2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.