Using O=C(N[C@@H]1C(=O)N[C@@H]1OCCBr)OCc1ccccc1 to produce O=C(N[C@@H]1C(=O)N2CCO[C@H]12)OCc1ccccc1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.