An unusual triterpene fatty acid conjugate from Dodonaea caespitosa

Andrew Bloomfield; Eugene Eades; Hendra Gunosewoyo; Alan Payne

Just Accepted

This article has been peer reviewed and accepted for publication. It is in production and has not been edited, so may differ from the final published form.

An unusual triterpene fatty acid conjugate from Dodonaea caespitosa

Andrew Bloomfield , Eugene Eades, Hendra Gunosewoyo , Alan Payne

Abstract

An unusual triterpene fatty acid conjugate was isolate from Dodonaea caespitosa. Its structure was formulated through spectroscopic methods of the acetylated natural product and hydrolysis into its individual components (p-hydroxydihydrocinnamic acid, (S)-(+)-8,16-dihydroxypalmitic acid and 30-hydroxybetulin). The stereochemistry of the hydroxyl at C8 of (S)-(+)-8,16-dihydroxypalmitic acid was determine by conversion to the known (S)-(+)-(8)-hydroxyplamitic acid using a Barton-McCombie deoxygenation reaction.

CH25050 Accepted 21 July 2025