Using Cc1cnc(Nc2cnn(C3CCNCC3)c2)nc1CCc1ccccc1C1(C(N)=O)CC1, CC(=O)O[BH-](OC(C)=O)OC(C)=O to produce Cc1cnc(Nc2cnn(C3CCN(C)CC3)c2)nc1CCc1ccccc1C1(C(N)=O)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.