2-OXO-4-(3-OXO-5-PHENYLPENT-1-EN-1-YL)-HEXAHYDRO-2H-CYCLOPENTA(B)FURAN-5-YL (1,1'-BIPHENYL)-4-CARBOXYLATE, (1E, 3AR,4R,5R,6AS)-
2-oxo-4-(3-oxo-5-phenylpent-1-en-1-yl)-hexahydro-2h-cyclopenta(b)furan-5-yl (1,1'-biphenyl)-4-carboxylate, (1e, 3ar,4r,5r,6as)-