High Speed Counter Current Chromatography (HSCCC) has been used to isolate and purify two quaternary alkaloids from a sample of curare prepared by the Panare Indians of Estado Bolivar, Venezuela. One of the compounds is the known base macusine B (1). The other one is a new but related base named panarine (2). Its structure has been established unequivocally by spectral and X-ray crystallographic analysis.
Quetin-Leclercq, J., Angenot, L., Dupont, L., & Bisset, N. G. (1988). Isolation and purification of panarine, A. Alkaloid from a Venezuelan Curare. Phytochemistry, 27(12), 4002-4004. https://doi.org/10.1016/0031-9422(88)83075-9 (Original work published 1988)