Squamosten-A, a Novel Mono-tetrahydrofuranic Acetogenin with a Double Bond in the Hydrocarbon Chain, from Annona squamosa L.

Abstract

Squamosten-A, a new mono-tetrahydrofuranic acetogenin possessing a double bond in the hydrocarbon chain, has been isolated from the seeds of Annona squamosa L. (Annonaceae). The structure has been elucidated on the basis of spectral evidence, including precursor-ion scanning spectra. Chemical degradation was successfully employed to determine the position of the double bond. © 1994, The Pharmaceutical Society of Japan. All rights reserved.