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Taste-modifying triterpene glycosides from Staurogyne merguensis
1Department of Chemistry, Faculty of Education, Yokohama National University, Japan.
Phytochemistry
|November 1, 1996
Abstract:
Five new oleanane-type triterpene glycosides named strogins 1-5 were isolated from leaves of Staurogyne merguensis. Their structures were determined on the basis of chemical and spectral evidence. After strogins 1, 2 and 4 were held in mouth, water elicited a sweet taste. On the other hand, strogins 3 and 5 had no activity. The structure-activity relationship is discussed.