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4 June 2013

Ipvelutine, 7β-Acetoxy-2α-(tigloyloxy)tropane, an Unusual Tropane Alkaloid from Ipomoea velutina R. BR. (Convolvulaceae)

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1
Institut für Pharmazie (Pharmazeutische Biologie), Freie Universität Berlin, Königin-Luise-Str. 2-4, D-14195 Berlin, Germany
2
AnalytiCon Discovery, Hermannswerder Haus 17, D-14473 Potsdam, Germany
3
Institut für Biologie (Angewandte Zoologie/Ökologie der Tiere), Freie Universität Berlin, HaderslebenerStr. 9, D-12163 Berlin, Germany
*
Author to whom correspondence should be addressed.

Abstract

Convolvulaceae provide a rich source of tropane alkaloids, however, 2-substi-tuted 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.

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