Using C=CCO[C@@H]1CN(C(=O)OC(C)(C)C)CC[C@@H]1NCc1ccccc1 to produce CCCO[C@@H]1CN(C(=O)OC(C)(C)C)CC[C@@H]1N, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.