Using COC(=O)C[C@@H]1COc2cc(O[C@@H]3CCc4c3ccc(C#N)c4Cc3ccccc3)ccc21 to produce N#Cc1ccc2c(c1Cc1ccccc1)CC[C@H]2Oc1ccc2c(c1)OC[C@H]2CC(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.