Lc. Baillie et al., SYNTHESIS OF THE A E/F TRICYCLIC SECTION OF THE NORDITERPENOID ALKALOID METHYLLYCACONITINE, A POTENT INHIBITOR OF NEUROTRANSMISSION/, Journal of the Chemical Society, Chemical Communications, (21), 1994, pp. 2487-2488
The tricyclic amine (+/-)-2; R = H, with five stereogenic centres, rep
resenting the A/E/F ring system of the norditerpene alkaloid methyllyc
aconitine, is synthesised from penta-1,4-dien-3-ol in nine steps, with
overall yield 16%.