Using [BH3-]C#N, O=C1CCN(CCSc2nc(-c3ccccc3)c(-c3ccccc3)[nH]2)CC1 to produce NC1CCN(CCSc2nc(-c3ccccc3)c(-c3ccccc3)[nH]2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.