Using CCOC(=O)CCC[C@H]1CCC[C@@H](OCc2nc(-c3cccc(OC)c3)oc2C)C1 to produce COc1cccc(-c2nc(CO[C@@H]3CCC[C@H](CCCC(=O)O)C3)c(C)o2)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.