Using Clc1ccc2c(c1)CNCc1nnc(C3CCN(c4ncccn4)CC3)n1-2, CC(=O)O[BH-](OC(C)=O)OC(C)=O to produce CN1Cc2cc(Cl)ccc2-n2c(nnc2C2CCN(c3ncccn3)CC2)C1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.