(1S,2S,3R,4R)-1,4-di-O-benzoyl-3-[(Z)-4-methoxycarbonylbut-2-enyl]-2-[(E)-3-oxooct-1-enyl]cyclopentane-1,4-diol

(1S,2R,3R,4R)-1,4-di-O-benzoyl-2-(tert-butyldiphenylsilyloxymethyl)-3-[(Z)-5-tetrahydropyranyloxypent-2-enyl]cyclopentane-1,4-diol