Using O=P(Cl)(Cl)Cl, CSc1ncc(-c2ccnc(Nc3ccc(C#N)cc3)n2)c(=O)[nH]1 to produce CSc1ncc(-c2ccnc(Nc3ccc(C#N)cc3)n2)c(Cl)n1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.