A further bisbenzylisoquinoline alkaloid from the above ground parts of Thalictrum simplex, this base is separated from the accompanying thalsimidine by thin layer chromatography. It is also dextrorotatory having [o:ll,0 + 27.45° (c 6.72, CHCI 3 ). The crystalline hydrochloride decomposes at 233-5°C and thepicrate, light yellow needles, also decomposes before melting, at 209-21 1°C.
The original structure has subsequently been revised to that given above.
Ismailov, Maekh, Yunusov., Dokl. Akad. Nauk. Uzbek SSR, 12, 22 (1960)
Maekh, Yunusov., ibid, 21,27 (1964)
Shamma et al., Chem. Commun., 7 (1966)
