Using CCCc1c(OCCCNc2ccc(CC(=O)OC)cc2Cl)ccc2c(C(F)(F)F)noc12 to produce CCCc1c(OCCCNc2ccc(CC(=O)O)cc2Cl)ccc2c(C(F)(F)F)noc12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.