title: Taste-modifying triterpene glycosides from Staurogyne merguensis.
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.
authors.affiliation: Department of Chemistry, Faculty of Education, Yokohama National University, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Hiura
authors.forename: T
authors.initials: T
authors.lastname: Akabane
authors.forename: K
authors.initials: K
authors.lastname: Ohtani
authors.forename: R
authors.initials: R
authors.lastname: Kasai
authors.forename: K
authors.initials: K
authors.lastname: Yamasaki
authors.forename: Y
authors.initials: Y
authors.lastname: Kurihara
mesh_terms: D006027:Glycosides / Q000737:chemistry / Q000302:isolation & purification* / Q000494:pharmacology; D009682:Magnetic Resonance Spectroscopy; D016339:Spectrometry, Mass, Fast Atom Bombardment; D013329:Structure-Activity Relationship; D013649:Taste / Q000187:drug effects*
chemical_list: D006027:Glycosides