Using CC(=O)Nc1ccc(-c2coc3cc(OC(C)=O)c(O)cc3c2=O)cc1 to produce CC(=O)Nc1ccc(-c2coc3cc(O)c(O)cc3c2=O)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.