How is (3Z,6R,7S)-3-Butylidene-6,7-dihydroxy-4,5,6,7-tetrahydro-2-benzofuran-1-one (CAS: 94596-27-7) typically synthesized?

The compound can be synthesized via a multistep process involving a variety of reactions such as alkylation, condensation, and oxidation. Common methods include the use of Meerwein-Ponndorf-Verley reduction to introduce the butylidene group, followed by ring closure and further modifications to achieve the desired stereochemistry. The synthesis typically requires specific catalysts and solvents, and the yield can be around 70-80%.