Using CC(C)(C)OC(=O)N1CC[C@](O)(c2ccc(Cl)cc2)[C@@](C)(O)C1 to produce C[C@]1(O)CNCC[C@]1(O)c1ccc(Cl)cc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.