Heteropolycyclic compounds and their use as metabotropic glutamate receptor antagonists
申请人:——
公开号:US20030055085A1
公开(公告)日:2003-03-20
The present invention provides compounds and pharmaceutical compositions that act as antagonists at metabotropic glutamate receptors, and that are useful for treating neurological diseases and disorders. Methods of preparing the compounds also are disclosed.
Structure-activity and structure-property relationships of novel Nrf2 activators with a 1,2,4-oxadiazole core and their therapeutic effects on acetaminophen (APAP)-induced acute liver injury
The antioxidant function induced by Nrf2protects the liver from damage. We found a novel Nrf2 activator named compound 25 via structural modification of compound 1 we previously reported. In vitro, compound 25 induced Nrf2 transport into the nucleus and protected hepatocyte L02 cells from APAP-induced cytotoxicity via activating the Nrf2-ARE signalingpathway. In vivo, 25 exhibited therapeutic effects
Structure–activity relationships of acyloxyamidine cytomegalovirus DNA polymerase inhibitors
作者:John A. Tucker、Terrance L. Clayton、Connie G. Chidester、Martin W. Schulz、Leigh E. Harrington、Steven J. Conrad、Yoshihiko Yagi、Nancee L. Oien、David Yurek、Ming-Shang Kuo
DOI:10.1016/s0968-0896(99)00319-3
日期:2000.3
initio molecular orbital calculations combined with qualitative estimates of steric interaction energies suggest that the lowest energy conformations of the acyloxyamidine linker are characterized by an extended planar CAr-C=N-O-C arrangement and either a syn-periplanar or anti-periplanar N-O-C-C(Ar') arrangement. Only the anti-periplanar conformation was observed in the crystalstructures of three
The present invention relates to tricyclic compounds of formula (I) or pharmaceutically acceptable salt thereof as mPGES-1 inhibitors. These compounds are inhibitors of the microsomal prostaglandin E synthase-1 (mPGES-1) enzyme and are therefore useful in the treatment of pain and/or inflammation from a variety of diseases or conditions, such as asthma, osteoarthritis, rheumatoid arthritis, acute or chronic pain and neurodegenerative diseases.
Transition-metal-catalyzed, directed intermolecular C–Hbond functionalization is synthetically useful but heavily underexplored in multiheteroatom heterocycle synthesis. Herein we report a cobalt catalytic method for the formation of a three-nitrogen-bearing benzotriazine scaffold via the coupling of arylhydrazine and oxadiazolone. This synthetic protocol features a low-cost base metal catalyst, a