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Paper | Special issue | Vol 30, No. 1, 1990, pp.441-450
Published online, 1st January, 1970
DOI: 10.3987/COM-89-S18
Structures of Elaeodendrosides M, N, O P, Q, R and S. A Series of Cardiac Glycosides Isolated from Elaeodendron glaucum

Kazutake Shimada,* Hiroshi Masuda, Hiroshi Ohtaki, Norihiko Kobayashi, and Toshio Nambara

*Faculty of Pharmaceutical Scicences, Kanazawa University, 13-1 Takara-machi, Kanazawa 920-0934, Japan

Abstract

Seven cardiac glycosides having an unusual sugar linkage, elaeodendrosides M, N, O, P, Q, R and S, were isolated from seeds of Elaeodendron glaucum.
These were unequivocally characterized on the basis of physical data and chemical correlation with related compounds previously isolated. These new compounds were tested for inhibitation of Na+, K+-adenosine triphosphatase from guinea pig heart, and the structure-activity relationships has been discussed.