title: Ipvelutine, 7β-Acetoxy-2α-(tigloyloxy)tropane, an Unusual Tropane Alkaloid from Ipomoea velutina R. Br. (Convolvulaceae).
abstract: Convolvulaceae provide a rich source of tropane alkaloids, however, 2-substituted tropanes have been described for only few species of this taxon. In this note, 2,7-diesters such as ipvelutine [7β-acetoxy-2α-(tigloyloxy)tropane] isolated from the vegetative parts of the Australian Ipomoea velutina R. BR. are described as a new group of tropane diesters.
authors.affiliation: Institut für Pharmazie (Pharmazeutische Biologie), Freie Universität Berlin, Königin-Luise-Str. 2-4, D-14195 Berlin, Germany.
authors.forename: Sonja Christina
authors.initials: SC
authors.lastname: Ott
authors.forename: Kristina
authors.initials: K
authors.lastname: Jenett-Siems
authors.forename: Karsten
authors.initials: K
authors.lastname: Siems
authors.forename: Frank
authors.initials: F
authors.lastname: Müller
authors.forename: Monika
authors.initials: M
authors.lastname: Hilker
authors.forename: Eckart
authors.initials: E
authors.lastname: Eich
keywords: 2,7-Disubstituted Tropanes; 7β-Acetoxy-2α-tigloyloxytropane; Convolvulaceae; Ipomoea velutina; Ipvelutine; Structure Elucidation