(1,1'-BIPHENYL)-4-CARBOXYLIC ACID, 4-(4,4-DIFLUORO-3-OXO-1-OCTENYL)HEXAHYDRO-2-OXO-2H-CYCLOPENTA(B)FURAN-5-YL ESTER, (3AR-(3A.ALPHA.,4.ALPHA.(E),5.BETA.,6A.ALPHA.))-
(1,1'-biphenyl)-4-carboxylic acid, 4-(4,4-difluoro-3-oxo-1-octenyl)hexahydro-2-oxo-2h-cyclopenta(b)furan-5-yl ester, (3ar-(3a.alpha.,4.alpha.(e),5.beta.,6a.alpha.))-