features of the synthesis are the formation of the Z-configured trisubstituted double bond by a one-pot esterification of allyl(diisopropoxy)borane and ring-closing metathesis, formation of the β-keto ester via ethyldiazoacetate addition to an aldehyde, and use of the Duthaler-Hafner acetate aldol reaction for the introduction of the stereocenter at C3. The practicality of this synthesis is demonstrated