Using COC(=O)[C@H]1CC[C@H](c2nc(-c3cccc(OCc4ccccc4)c3)c3c(N)nccn32)CC1 to produce COC(=O)[C@H]1CC[C@H](c2nc(-c3cccc(O)c3)c3c(N)nccn32)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.