Using [BH3-]C#N, c1ccc(-c2[nH]c3ccccc3c2C2CCNCC2)cc1 to produce CN1CCC(c2c(-c3ccccc3)[nH]c3ccccc23)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.