The bark of Strychnos brasiliensis Mart. contains this alkaloid which crystallizes
from Et20 in colourless needles. It has [α]26D + 156° (c 0.91, CHC13) and gives
an ultraviolet spectrum with an absorption maximum at 247 mil and shoulders
at 277 and 285 mil. The structure is based mainly upon spectroscopic data.
Iwataki, Comin., Tetrahedron, 27, 2541 (1971)
