Constituents of Eupomatia Species. II. Isolation and Structure Determination of Further Eupomatenoid Lignans From the Bark of Eupomatia laurina

Australian Journal of Chemistry
1972.0

Abstract

<jats:p>A further extraction of the bark of Eupomatia laurina R.Br. has yielded 16 substances: liriodenine (as before), norushinsunine, three new bases, benzoic acid, sitosterol, eupodienone-1 (previously EL2; but not EL3 which is an artefact from EL2), eupomatene (ELl), and seven related substances. ��� The last eight substances, which are closely related, ere named ?eupomatenoids?. The structures of the eupomatenoids -2 to -8 have been established. Like eupomatenoid-1 (eupomatene), they are derivatives of 3-methyl-2-phenyl-5-(E)-propenylbenzofuran and are classified as lignans.

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