Using CCOC(=O)CCC(Oc1cc(OCc2cncnc2)ccc1C(C)=O)c1ccccc1C to produce CC(=O)c1ccc(OCc2cncnc2)cc1OC(CCC(=O)O)c1ccccc1C, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.