[EN] PYRIDINE COMPOUNDS AND THEIR PHARMACEUTICAL USE<br/>[FR] COMPOSES PYRIDINE ET LEUR UTILISATION PHARMACEUTIQUE
申请人:FUJISAWA PHARMACEUTICAL CO
公开号:WO2000049015A1
公开(公告)日:2000-08-24
A compound of formula (I) wherein each symbol is as defined in the specification, and pharmaceutically acceptable salts thereof. The compound (I) of the present invention and pharmaceutically acceptable salts thereof possess a strong inhibitory activity on the production of nitric oxide (NO), and are useful for prevention and/or treatment of NOS(nitric oxide synthase)-mediated diseases such as adult respiratory distress syndrome, myocarditis, synovitis, septic shock, insulin-dependent diabetes mellitus, ulcerative colitis, cerebral infarction, rheumatoid arthritis, osteoarthritis, osteoporosis, systemic lupus erythematosus, rejection by organ transplantation, asthma, pain, ulcer, and the like in human being and animals.
Mechanism of C−F Reductive Elimination from Palladium(IV) Fluorides
作者:Takeru Furuya、Diego Benitez、Ekaterina Tkatchouk、Alexandra E. Strom、Pingping Tang、William A. Goddard、Tobias Ritter
DOI:10.1021/ja909371t
日期:2010.3.24
mechanism study of C-F reductiveeliminationfrom a transition metal complex is described. C-F bond formation from three different Pd(IV) fluoride complexes was mechanistically evaluated. The experimental data suggest that reductiveelimination occurs from cationic Pd(IV) fluoride complexes via a dissociative mechanism. The ancillary pyridyl-sulfonamide ligand plays a crucial role for C-F reductive elimination
we report a new synthetic strategy for 2-(pyridin-2-yl)phenols and 2-(pyridin-2-yl)anilines catalyzed by a Pd/C–ethylene system. The starting materials, 2-(pyridin-2-yl)cyclohexan-1-ones, can be easily prepared by the reaction of substituted pyridine N-oxide and cyclohexanones. The most useful feature of this method is that both 2-(pyridin-2-yl)phenols and 2-(pyridin-2-yl)anilines are easily synthesized