Using CC(C)(C)OC(=O)N1[C@@H]2CC[C@@H](C2)[C@H]1CNCc1ccccc1 to produce CC(C)(C)OC(=O)N1[C@@H]2CC[C@@H](C2)[C@H]1CN, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.