Using CC(=O)O[BH-](OC(C)=O)OC(C)=O, CN1CC[C@@]2(CC[C@H](c3cc(-c4ccc(C(F)(F)F)cc4)ccn3)N2)C1=O to produce CN1CC[C@@]2(CC[C@H](c3cc(-c4ccc(C(F)(F)F)cc4)ccn3)N2C)C1=O, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.