Preparation of Sulfonamides from Sodium Sulfonates: Ph3P ⋅ Br2 and Ph3P ⋅ Cl2 as a Mild Halogenating Reagent for Sulfonyl Bromides and Sulfonyl Chlorides
Arene- and alkanesulfonamides were prepared by treatment of the corresponding sodium sulfonates with triphenylphosphine dibromide or dichloride followed by amines in the presence of triethylamine via sulfonyl halides. Reactions of sodium aminosulfonates gave cyclized products. Amidation of p-toluenesulfonic acid with triphenylphosphine dichloride was also examined to give N-benzyl-p-toluenesulfonamide. Methyl p-toluenesulfonate was obtained by esterification of sodium p-toluenesulfonate via p-toluenesulfonyl chloride.
CYCLIC SULFONAMIDE DERIVATIVES AND METHODS OF THEIR USE
申请人:Fensome Andrew
公开号:US20080171737A1
公开(公告)日:2008-07-17
The present invention is directed to cyclic sulfonamide derivatives of formula I:
or a pharmaceutically acceptable salt thereof, which are monoamine reuptake inhibitors, compositions containing these derivatives, and methods of their use for the prevention and treatment of conditions, including, inter alia, vasomotor symptoms, sexual dysfunction, gastrointestinal disorders and genitourinary disorder, depression disorders, endogenous behaviorial disorder, cognitive disorder, diabetic neuropathy, pain, and other diseases or disorders.
NOVEL AMINOBENZOSULTAM DERIVATIVES AS LIPOXYGENASE INHIBITORS
申请人:PFIZER INC.
公开号:EP0549666A1
公开(公告)日:1993-07-07
US5504095A
申请人:——
公开号:US5504095A
公开(公告)日:1996-04-02
[EN] NOVEL AMINOBENZOSULTAM DERIVATIVES AS LIPOXYGENASE INHIBITORS
申请人:PFIZER INC.
公开号:WO1992005164A1
公开(公告)日:1992-04-02
(EN) Aminobenzosultam derivatives as inhibitors of lipoxygenase and useful in the treatment or alleviation of allergic and inflammatory diseases.(FR) Des dérivés d'aminobenzosultane inhibant l'action de l'enzyme de la lipoxygénase sont utiles pour traiter ou soulager des maladies inflammatoires ou les allergies.