Using CCOC(=O)c1nccnc1Oc1ccc(C(=O)c2nc3ccccc3[nH]2)cc1 to produce O=C(c1ccc(Oc2nccnc2C(=O)O)cc1)c1nc2ccccc2[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.