抄録
(±)-5-[5β-(((E)-1-Octen-3-ol)-1)-2-oxabicyclo[3.3.0]octan-3-yl]-4-oxapentanoic acid (±)-(1a, b), designed as a chemically and biologically stable prostacyclin analogue, was synthesized in 15% yield overall, via the (±)-3-hydroxymethyl-5-carbethoxy-2-oxabicyclo[3.3.0]octane (4) as the key intermediate.