Using [BH3-]C#N, COc1ccc(C=C2CC(C)(C)NC(C)(C)C2)c([N+](=O)[O-])c1 to produce COc1ccc(C=C2CC(C)(C)N(C)C(C)(C)C2)c([N+](=O)[O-])c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.