Using CCOC(=O)Cc1c(C(=O)O)n(-c2cccc(C(=O)O)c2)c2ccccc12 to produce O=C(O)c1cccc(-n2c(C(=O)O)c(CCO)c3ccccc32)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.