, 1b, is described. The key step of the synthesis is the construction of the rotationally hindered and thus stereogenicbiaryl axis, which was built up by a Suzukireaction. The use of chiral ligands in the palladium-catalyzed cross-coupling permitted to increase the low internal asymmetric induction up to a diastereomeric ratio of 74:26. The assignment of the axial configurations of the atropo-diastereomers