New Anthranilic Acid Based Antagonists with High Affinity and Selectivity for the Human Cholecystokinin Receptor 1 (hCCK1-R)
摘要:
The anthranilic acid diamides represent the most recent class of nonpeptide CCK1 receptor (CCK1-R) antagonists. Herein we describe the second phase of the anthranilic acid C-terminal optimization using nonproteinogenic amino acids containing a phenyl ring in their side chain. The Homo-Phe derivative 2 (VL-0797) enhanced 12-fold the affinity for the rat CCK1-R affinity and 15-fold for the human CCK1-R relative to the reference compound 12 (VL-0395). The eutomer of 2 (6) exhibited a nanomolar range affinity toward the human CCK1-R and was at least 400-fold selective for the CCK1-R over the CCK2-R. Molecular docking in the modeled CCK1-R and its validation by site-directed mutagenesis experiments showed that the 6 binding site overlaps that occupied by the C-terminal bioactive region of the natural agonist CCK. Owing to their interesting properties, new compounds provided by this study represent a solid basis for further advances aimed at synthesis of clinically valuable CCK1-R antagonists.
Leveraging Electron‐Deficient Iminium Intermediates in a General Synthesis of Valuable Amines
作者:Che‐Sheng Hsu、Carlos R. Gonçalves、Veronica Tona、Amandine Pons、Marcel Kaiser、Nuno Maulide
DOI:10.1002/anie.202115435
日期:2022.5.9
The use of aminals as precursors for iminium ions has been limited to methylene derivatives, thus hampering its broader use. By employing electron-deficient iminium ions an obvious hurdle of the methodology is overcome, whilst generating highly desirable motifs. This broad concept is highlighted by the late-stage amination of quinine into a biologically interesting new analogue.
MACROCYCLIC COMPOUNDS FOR INHIBITION OF TUMOR NECROSIS FACTOR ALPHA
申请人:Lee Jinbo
公开号:US20100152099A1
公开(公告)日:2010-06-17
The invention provides macrocyclic compounds and methods for their synthesis and use. In particular, the invention provides macrocyclic compounds that modulate the activity of tumor necrosis factor alpha and/or are useful in the treatment of medical conditions, such as, rheumatoid arthritis, psoriasis, and asthma.