Using CC(C)(C)OC(=O)N1CCC(OCc2noc(-c3cc4c(CO)nccc4o3)n2)CC1 to produce CC(C)(C)OC(=O)N1CCC(OCc2noc(-c3cc4c(C=O)nccc4o3)n2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.