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The alkaloids of symphytum uplandicum russian comfrey

The alkaloids of symphytum uplandicum russian comfrey

Australian Journal of Chemistry 33(5): 1105-1114

Eight pyrrolizidine alkaloids were identified in the leaves of Symphytum .times. uplandicum Nyman [S. officinale .times. S. asperum] (Russian comfrey) [used as a medicinal herb]. They are echimidine, symphytine, lycopsamine, intermedine and 4 new alkaloids, 7-acetyllycopsamine, 7-acetylintermedine, symlandine (7-angelyl-9-viridiflorylretronecine) and uplandicine (7-acetyl-9-echimidinylretronecine).

Accession: 006598668

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DOI: 10.1071/ch9801105

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