Neighboring group participation by sulfur involving four-membered-ring intermediates (RS-4)
作者:Ernest L. Eliel、David E. Knox
DOI:10.1021/ja00296a019
日期:1985.5
On etudie les produits de methanolyse et de trifluoroethanolyse ainsi que les vitesses de methanolyse d'un certain nombre de p-toluenesulfonates d'alkylthio-3 et d'arylthio-3 propyle substitues sur la chaine
On etudi les produits demethylyse et de trifluoroethanolyse ainsi que les vitesses demethylyse d'un some nombre de p-甲苯磺酸 d'alkylthio-3 et de d'arylthio-3 propyle substitues
AMINO ACID DERIVATIVE
申请人:SANTEN PHARMACEUTICAL CO., LTD.
公开号:EP0455833A1
公开(公告)日:1991-11-13
A novel compound of general formula (I), which is useful for treating diseases caused by various immune disorders such as immunodeficiency or autoimmune disease, a process for producing the same, and a pharmaceutical composition containing the same as an active ingredient.
In order to search for anti-hepatitis drugs, we synthesized a series of eight- and nine-membered cyclicdisulfides (1) and six- and seven-membered cyclic sulfides (2) and evaluated them for ability to reduce mortality in the model of acute hepatic failure induced by Propionibacterium acnes-lipopolysaccharide in mice. Compounds 1 were synthesized by oxidative cyclization of the corresponding dithiol