A three-step methodology involving an external chiral ligand-mediated asymmetric addition of phenyllithium to an anisidine imine, oxidative removal of N-PMP group, and finally oxidative conversion of the phenyl group to a carboxyl group provides a facile synthesis of opticallypureα-aminoacid derivatives bearing a bulky α-substituent.
Hydrolyse wurden daraus die optischaktiven N-Acetyl-Aminosäuren 3a - d kristallin gewonnen und charakterisiert. Die NMR- und CD-Spektren von 3 und 4 erlauben die Bestimmungder relativen Konfigurationen, die durch Röntgenstrukturanalyse abgesichert wurden. Chemische Korrelationen mit den 2-Cyclopentylglycinen bekannter Konfiguration lieferten die absoluten Konfigurationen von 3a - d. Nur (2S, 1′R)-( +
INHIBITORS OF ANTIGEN PRESENTATION BY MHC CLASS II MOLECULES AND METHODS OF USE THEREOF
申请人:Olson Gary L.
公开号:US20110217324A1
公开(公告)日:2011-09-08
Provided herein are novel compounds, pharmaceutical compositions containing such compounds and methods for their use. In particular, the compounds described herein are useful for the treatment or prevention of diseases associated with T cell proliferation such as autoimmune diseases and disorders.
METHODS FOR THE USE OF INHIBITORS OF ANTIGEN PRESENTATION BY MHC CLASS II MOLECULES
申请人:Olson Gary Lee
公开号:US20090111755A1
公开(公告)日:2009-04-30
The present invention relates to compounds, pharmaceutical compositions containing such compounds and methods for their use. In particular, the compounds of the invention are useful for the treatment or prevention of diseases associated with T cell proliferation such as autoimmune diseases and disorders.
INHIBITORS OF ANTIGEN PRESENTATION BY MHC CLASS II MOLECULES
申请人:Olson Gary Lee
公开号:US20120252734A1
公开(公告)日:2012-10-04
The present invention relates to compounds, pharmaceutical compositions containing such compounds and methods for their use. In particular, the compounds of the invention are useful for the treatment or prevention of diseases associated with T cell proliferation such as autoimmune diseases and disorders.