An enantiospecific synthesis of curcumanolide A 1, a spirolactonic sesquiterpene, has been achieved starting from the chiral cyclopentane derivative 3, readily accessible from (-)-carvone. The absolute configuration of curcumanolide A 1 was unambiguously determined as depicted.
T. Honda and H. Ishige, J. Chem. Soc., Perkin Trans. 1, 1994, 3567 DOI: 10.1039/P19940003567
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