The chemistry of Eremophila spp. VIII. A cembrenetriol from E. clarkei

Abstract

The isolation of a triol (1) from the title plant is described. Reduction and deoxygenation of (1) leads to the cembrane (12). The position of the primary hydroxyls is fixed by a stereochemical argument and the relationship of the 1-hydroxy-1-methylethyl group and the double bond is established through the pyrrole (14).