Aphagranols D – H: Five New Limonoids from the Fruits of Aphanamixis grandifolia

Five new limonoids, aphagranols D–H (1–5, resp.), were isolated from the EtOH extract of the fruits of Aphanamixis grandifolia by chromatographic methods. Their structures were established on the basis of extensive spectroscopic analyses. The absolute configuration of 1 was determined by comparison the experimental and calculated electronic circular dichroism (ECD) spectra. All of the isolates were evaluated for insecticidal activities.