Using CC(c1nc2c([nH]1)CCNC2)c1nc2ccc(C(=O)NCCOc3ccc(C(=O)OCc4ccccc4)cc3C(=O)O)cc2n1C to produce O=C(O)c1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.