Using CCCCC(NC(=O)c1cc(-c2c(OC)cccc2OC)n(-c2ccc(Cl)c3ccccc23)n1)C(=O)O to produce CCCC[C@H](NC(=O)c1cc(-c2c(O)cccc2O)n(-c2ccc(Cl)c3ccccc23)n1)C(=O)O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.