- Flexible and modular syntheses of enantiopure 5-cis-substituted prolinamines from l-pyroglutamic acid
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A wide range (25 examples) of 5-cis-substituted prolinamines is prepared in five to ten steps starting from cheap l-pyroglutamic acid. Three routes, differing mainly in the order of introduction of the substituents at the 5-cis position, the pyrrolidine nitrogen atom, and the exocyclic amino function, are successfully developed.
- Prause, Felix,Kaldun, Johannes,Arensmeyer, Benjamin,Wennemann, Benedikt,Fr?hlich, Benjamin,Scharnagel, Dagmar,Breuning, Matthias
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supporting information
p. 575 - 586
(2015/02/19)
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- VLA-4 inhibitor compounds
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Compounds that selectively inhibit the binding of ligands to alpha4beta1 integrin (VLA-4) and methods for their preparation are disclosed. In one embodiment, compounds of the invention are represented by Formula I: As selective inhibitors of VLA-4 mediated cell adhesion, compounds of the present invention are useful in the treatment of conditions associated with such adhesion, including, but not limited to, such conditions as inflammatory and autoimmune responses, diabetes, asthma, psoriasis, inflammatory bowel disease, transplantation rejection, and tumor metastasis. Also disclosed are pharmaceutical compositions, methods of inhibiting VLA-4 mediated cell adhesion and methods of treating conditions associated with LA-4 mediated cell adhesion, which involve compounds of Formula I.
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