The leaves of Ocotea acutangula (Mez) contain, in addition to the known (S)-(-)-pallidine (5) and its new derivative (S)-(-)-O-methylpallidine (6), the new 8,14-dihydromorphinandienone alkaloids (S)-(-)pallidinine (7) and (S)-(-)-O-methylpallidinine (8) which possess a B/C trans-junction.