Process for resolving racemic mixtures of piperidine derivatives
A process for resolving a racemic mixture into its (R) and (S) enantiomers. The racemic mixture is reacted with a resolving agent selected from the group consisting of di-benzoyl-L-tartaric acid, di-benzoyl-D-tartaric acid, (S)-mandelic acid and (R)-mande
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(2008/06/13)
Efficient asymmetric hydrogenation of pyridines
Up to four stereocenters can be created efficiently in a single step by the asymmetric hydrogenation of oxazolidinone-substituted pyridines (see scheme). Furthermore, selective chirality transfer and nondestructive cleavage of the chiral auxiliary occur under the same reaction conditions, making an additional cleavage step unnecessary.
Glorius, Frank,Spielkamp, Nick,Holle, Sigrid,Goddard, Richard,Lehmann, Christian W.
p. 2850 - 2852
(2007/10/03)
Immunopotentiator agents
Novel compounds and methods for preparing same, immunopotentiating compositions, and a method for potentiating the immune system of a host animal. The method comprises administering to the animal an effective amount of an immunopotentiating compound of Formula I or Formula II, or a physiologically acceptable salt.
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Page column 23
(2010/02/05)
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