Mercaptoalkylpyridines carrying an ethenyl or ethynyl substituent are prepared from known pyridine compounds, principally pyridoxine, by known chemical procedures, and are useful in the treatment of rheumatoid arthritis and related inflammatory diseases.
Process for the production of .beta.-mercaptopropionic acid derivatives
申请人:Degussa Aktiengesellschaft
公开号:US04490307A1
公开(公告)日:1984-12-25
There is provided a process for the production of .beta.-mercaptopropionic acid and its esters and nitriles by reacting the corresponding acrylic acid derivatives with trithiocarbonates in aqueous solution.
Preparation of organo-tin compounds, particularly mercapto-tin compounds. A metal, preferably an alkali metal, or ammonium thioxanthate is reacted with a tin salt. In a variant, the thioxanthate is produced in the reaction medium per se, starting from the corresponding trithiocarbonate and an organic halide.