[1,1-Biphenyl]-4-carboxylic Acid (3aR,4R,5R,6aS)-Hexahydro-4-[(3R)-3-hydroxy-5-phenylpentyl]-2-oxo-2H-cyclopenta[b]furan-5-yl Ester

[1,1''-Biphenyl]-4-carboxylic Acid (3aR,4R,5R,6aS)-Hexahydro-4-[(3R)-3-hydroxy-5-phenylpentyl]-2-oxo-2H-cyclopenta[b]furan-5-yl Ester is an intermediate in the synthesis of Latanoprost (L177280) related analogues used in the treatment of glaucoma and various degenerative eye diseases.