H. Araya et al., SQUAMOSTEN-A, A NOVEL MONO-TETRAHYDROFURANIC ACETOGENIN WITH A DOUBLE-BOND IN THE HYDROCARBON CHAIN, FROM ANNONA-SQUAMOSA L, Chemical and Pharmaceutical Bulletin, 42(2), 1994, pp. 388-391
Squamosten-A, a new mono-tetrahydrofuranic acetogenin possessing a dou
ble 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 spec
tra. Chemical degradation was successfully employed to determine the p
osition of the double bond.