New Geometric and Stereoisomeric Triterpene Dimers from Maytenus chuchuhuasca.

Osamu Shirota, Hiroshi Morita, Koichi Takeya, Hideji Itokawa

Chemical and Pharmaceutical Bulletin · 1998 · 28 citations · 0 references

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Abstract

New geometric and stereoisomeric triterpene dimers, 7, 8-dihydroisoxuxuarine Eα (2), xuxuarines Fβ (3), Gα (4) and Gβ (5), along with a known compound, scutidin αA (1), were isolated from the South American medicinal plant "xuxua" (Maytenus chuchuhuasca RAYMOND-HAMET et COLAS). Their structures were determined on the basis of spectroscopic evidence including CD spectral studies.