Synthesis of 1-Benzothiopyrylium Perchlorates and Related Compounds
作者:Hiroyuki Nakazumi、Teijiro Kitao
DOI:10.1246/bcsj.53.2415
日期:1980.8
The blue colored 1-benzothiopyrylium perchlorates were synthesized by the reduction of thiocoumarins with lithium aluminium hydride followed by the treatment with acid. A number of new thiocarbonyl derivatives of thiocoumarins and thiochromones were also synthesized, the spectral characterization of which has been described.
The present invention is directed to inhibitors of S-nitrosoglutathione reductase (GSNOR), pharmaceutical compositions comprising such GSNOR inhibitors, and methods of making and using the same.
The present invention is directed to inhibitors of S-nitrosoglutathione reductase (GSNOR), pharmaceutical compositions comprising such GSNOR inhibitors, and methods of making and using the same.
Treatment of 5- and 7-methoxy-2-methyl-4H-1-benzothiopyran-4-one with lithium diisopropylamide followed by electrophiles gave 2-substituted 4H-1-benzothiopyran-4-ones. Utilizing this reaction, 3-substituted 6- and 8-methoxy-1,2-dihydrocyclopenta[b][1]benzothiopyran-9(3H)-ones were also synthesized, and several compounds showed potential analgesic and anti-inflammatory activities.