Using CC(C)[C@H]1COC(=O)N1C(=O)[C@H](CC1CCCC1)c1ccc(Cl)c(Cl)c1, OO to produce O=C(O)[C@H](CC1CCCC1)c1ccc(Cl)c(Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.