Using CCOC(=O)c1ccc2c(cnn2CCC(=O)Nc2ncc[nH]2)c1 to produce O=C(CCn1ncc2cc(C(=O)O)ccc21)Nc1ncc[nH]1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.