Using O=C(c1cc(Br)ccc1F)N1CCNC[C@@H]1c1ccc(F)cc1, CC(=O)O[BH-](OC(C)=O)OC(C)=O to produce CN1CCN(C(=O)c2cc(Br)ccc2F)[C@@H](c2ccc(F)cc2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.