A further complex alkaloid of the diterpenoid class isolated from the seeds of
Delphinium staphisagria, this base is obtained as a resin that cannot be
crystallized. It has a specific rotation of [α]25D - 104.5° (c 2.0, C6H6 ) and the
structure has been determined primarily on the basis of spectroscopic
determinations.
Pelletier, Djarmati, Mody, Tetrahedron Lett., 1749 (1976)
