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nones and DKR. Additionally, we have developed a practical
approach to U-(À)-50488 starting from an asymmetric hydro-
genation product, namely a cis-2-aminocycloalkanol.
Received: June 8, 2007
Published online: August 17, 2007
Keywords: amino alcohols · asymmetric catalysis · diamines ·
.
hydrogenation · ruthenium
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[13] [a]2D0 = + 50.2( c = 1.05, CHCl3) for (1S,2S)-6. Ref. [12b]: [a]D20
+ 49.2( c = 1.05, CHCl3) for 99% ee.
=
7508
ꢀ 2007 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
Angew. Chem. Int. Ed. 2007, 46, 7506 –7508