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The pyrrolizidine alkaloids of Senecio syringifolius and S. hadiensis from Kenya

✍ Scribed by Obuya Were; Michael Benn; Raphael M. Munavu


Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
750 KB
Volume
32
Category
Article
ISSN
0031-9422

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## Abstract The new pyrrolizidine alkaloid glycoside **1**, and the three new highly oxygenated bisabolane sesquiterpenes **4**–**6**, together with the two known pyrrolizidine alkaloids **2** and **3**, were isolated from the roots of __Ligularia cymbulifera__ (W.β€…W. Smith) Hand.‐Mazz. Their struc