Using CCCOc1ccc2c(c1)[C@@H](c1ccc(OC)cc1OCC(=O)OC)[C@H](C(=O)OC)[C@H]2c1ccc2c(c1)OCO2 to produce CCCOc1ccc2c(c1)[C@@H](c1ccc(OC)cc1OCC(=O)O)[C@H](C(=O)[O-])[C@H]2c1ccc2c(c1)OCO2, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.