Mersinaline and mersirachine, novel quinolinic alkaloids of the mersinine group from Kopsia

Two quinolinic alkaloids belonging to the novel mersinine subclass were isolated from Kopsia singapurensis. The structures of these alkaloids were established by spectroscopic methods and possible biogenetic relationships between these and the mersinine alkaloids are presented.

Two quinolinic alkaloids belonging to the novel mersinine subclass were isolated from Kopsia singapurensis. The structures of these alkaloids were established by spectroscopic methods and possible biogenetic relationships between these and the mersinine alkaloids are presented.