Using CC(=O)O[BH-](OC(C)=O)OC(C)=O, CCc1nn(Cc2cccc(OC[C@H]3NCC[C@@H]3O)n2)c2cccc(NC(=O)c3cnc4ccccn34)c12 to produce CCc1nn(Cc2cccc(OC[C@@H]3[C@@H](O)CCN3C)n2)c2cccc(NC(=O)c3cnc4ccccn34)c12, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.