Total Synthesis of (−)-Minquartynoic Acid: An Anti-Cancer, Anti-HIV Natural Product

Abstract
The tetraacetylenic compound, (S)-minquartynoic acid (1), is synthesized in seven linear steps and 17% overall yield from commercially available azelaic acid monomethyl ester. The key step is a one-pot three-component Cadiot−Chodkiewicz reaction to construct the tetrayne unit without using either a diyne or a triyne intermediate.