Author's Organization：(Present address)Division of Pharmacognosy and Phytochemistry, National Institute of Health Sciences Department of Pharmacognosy, School of Pharmacy, Tokyo University of Pharmacy and Life Science Department of Pharmacognosy, School of Pharmacy, Tokyo University of Pharmacy and Life Science Department of Pharmacognosy, School of Pharmacy, Tokyo University of Pharmacy and Life Science
Published: January 15, 1998Received: June 23, 1997Available on J-STAGE: March 31, 2008Accepted: October 15, 1997
Advance online publication: -
Revised: -
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.
