Using CC(=O)O[BH-](OC(C)=O)OC(C)=O, Cn1nc(C2CCNCC2)c2c3ccccc3c(=O)[nH]c21 to produce CN1CCC(c2nn(C)c3[nH]c(=O)c4ccccc4c23)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.