endogenous mediator to resolve inflammation, was synthesized by Wittig reaction between the C15–C20 aldehyde and the C10–C14 phosphonium salt possessing the vinyl iodo moiety followed by Suzuki–Miyaura coupling of the resulting vinyl iodide with the vinyl borane of the C1–C9 part, which was derived from the corresponding acetylene by hydroboration. The C5 and C18 chiral centers in these parts were created