Using CC(C)(C)OC(=O)N[C@H]1CC[C@H](C(=O)Nc2c(C(=O)Nc3ccc(Cl)cn3)oc3ccccc23)CC1 to produce N[C@H]1CC[C@H](C(=O)Nc2c(C(=O)Nc3ccc(Cl)cn3)oc3ccccc23)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.