A new quaternary indole alkaloid, venecurine, has been isolated by chromatographie techniques from a curare obtained from the Hoti tribe of Venezuela. Elucidation of its structure is based mainly on 2D-NMR studies.
Quetin-Leclercq, J., Warin, R., Bisset, N. G., & Angenot, L. (1989). Venecurine, an indole alkaloid from curare. Phytochemistry, 28(8), 2221-2223. https://doi.org/10.1016/S0031-9422(00)97954-8 (Original work published 1989)