Using COC(=O)c1ccc2c(=O)n(Cc3ccc4c(c3)OCO4)c(C(=O)OC)c(-c3ccccc3)c2c1 to produce COC(=O)c1c(-c2ccccc2)c2cc(C(=O)O)ccc2c(=O)n1Cc1ccc2c(c1)OCO2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.