Using C#Cc1ccc(Cc2cc([C@@]3(O)O[C@H](CO)[C@@H](O)[C@H](O)[C@H]3O)ccc2Cl)cc1, Brc1cncnc1 to produce OC[C@H]1O[C@](O)(c2ccc(Cl)c(Cc3ccc(C#Cc4cncnc4)cc3)c2)[C@H](O)[C@@H](O)[C@@H]1O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.