1,3,5,6-Tetradehydronitrarine

This unsaturated alkaloid has recently been isolated from Nitraria schoberi. The structure has been determined spectroscopically, primarily from a study of the mass spectral fragmentation pattern.

Ibragimov, Maekh, Yunusov, Khim. Prir. Soedin., 11,275 (1975)