Peptidomimetic C5a receptor antagonists with hydrophobic substitutions at the C-terminus: increased receptor specificity and in vivo activity
Karsten Schnatbaum1, Elsa Locardi, Dirk Scharn
1Jerini AG, Invalidenstrasse 130, 10115 Berlin, Germany. schnatbaum@jerini.de
Bioorganic & Medicinal Chemistry Letters
|August 1, 2006
Abstract:
A new class of peptidomimetic C5a receptor antagonists characterized by C-terminal amino acids with hydrophobic side chains is presented. Systematic optimization of the first hits led to JPE1375 (36), which was intensively characterized in vitro and in vivo. Compound 36 exhibits high microsomal stability and receptor specificity and is highly active in an immune complex mediated peritonitis model (reverse passive Arthus reaction) in mice.


