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Communication | Regular issue | Vol 34, No. 5, 1992, pp.885-889
Published online, 1st January, 1970
DOI: 10.3987/COM-92-5988
Sesquiterpene Pyridine Alkaloids from Maytenus ebenifolia

Hideji Itokawa,* Osamu Shirota, Hiroshi Morita, and Koichi Takeya

*Department of Pharmacognosy, Tokyo College of Pharmacy, Horinouchi 1432-1, Hachioji, Tokyo 192-03, Japan

Abstract

Three new sesquiterpene pyridine alkaloids, ebenifolines W-I(1), E-I(2), and E-II(3) were isolated from the stem barks of Maytenus ebenifolia Reiss. (Celastraceae). Their structures were elucidated by spectroscopic methods.