Using N#CCCOCCl, COc1ccc(C(OC[C@H]2O[C@@H](n3ccc(=O)[nH]c3=O)[C@H](O)[C@@H]2O)(c2ccccc2)c2ccc(OC)cc2)cc1 to produce COc1ccc(C(OC[C@H]2O[C@@H](n3ccc(=O)[nH]c3=O)[C@H](OCOCCC#N)[C@@H]2O)(c2ccccc2)c2ccc(OC)cc2)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.