A scalable synthetic route of the nonselective but PPARα-preferring potent PPAR agonist NNC 61-4655 aimed for treatment of type 2 diabetes was developed. The synthetic pathway comprises the convergent synthesis and coupling of the two key intermediates E-5- (chloropent-3-en-1-ynyl) benzene 8 (prepared in a five-step synthesis in 18% overall yield) and (S)-2-ethoxy-3-(4-hydroxyphenyl) propanoic acid isopropyl ester 9. The 2- ...