Using CCOC(=O)c1[nH]nc2c1CC1C3CCc4cc(OCc5ccccc5)ccc4C3CCC21C to produce CC12CCC3c4ccc(O)cc4CCC3C1Cc1c2n[nH]c1C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.