31752-98-4 [1,1'-Biphenyl]-4-carboxylic acid, hexahydro-2-oxo-4-[(phenylmethoxy)methyl]-2H-cyclopenta[b]furan-5-yl ester, (3a,4,5,6a)-(-)- [1,1'-Biphenyl]-4-carboxylic acid, hexahydro-2-oxo-4-[(phenylmethoxy)methyl]-2H-cyclopenta[b]furan-5-yl ester, (3a,4,5,6a)-(-)-