Using CC(=O)Oc1nc(-c2nc3ccc(OCC4CC4)cc3o2)ccc1OC[C@H](C)NC(=O)OC(C)(C)C to produce COc1nc(-c2nc3ccc(OCC4CC4)cc3o2)ccc1OC[C@H](C)NC(=O)OC(C)(C)C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.