Arboflorine, an unusual pentacyclic monoterpenoid indole alkaloid incorporating a third nitrogen atom.

Arboflorine, an unusual pentacyclic monoterpenoid indole alkaloid incorporating a third nitrogen atom.: Org Lett. 2006 Apr 13;8(8):1733-5 Authors: Lim KH, Kam TS

[structure: see text] A new indole alkaloid, arboflorine, possessing a novel pentacyclic carbon skeleton and incorporating a third nitrogen atom was obtained from the Malayan Kopsia arborea. The structure was established by spectroscopic analysis, and a possible biogenetic pathway from a preakuammicine-type precursor is presented.