申请人:Merck & Co., Inc.
公开号:US03970693A1
公开(公告)日:1976-07-20
Process for preparing 5-fluoro-2-methyl-1-(p-methylsulfinylbenzylidene)-indene-3-acetic acid by reacting fluorobenzene with an acid halide, to form an indanone, reaction of the indanone with a methylthio (or methylsulfinyl) benzyl compound to form 5-fluoro-2-methyl-1-(p-methylthiobenzyl) or (p-methylsulfinylbenzyl)-indene and reacting said indene with a glyoxylic acid. This invention relates to new processes for preparing 5-fluoro-2-methyl-1-(p-methylsulfinylbenzylidene)-indene-3-acetic acid, to intermediates thereof and processes for said intermediates.
通过将氟苯与酸卤反应,形成茚酮,将茚酮与甲硫基(或甲基亚砜基)苯甲烷化合物反应,形成5-氟-2-甲基-1-(对甲硫基苯甲基)或(对甲基亚砜基苯甲基)-茚烯,然后将所述茚烯与乙酰乙酸反应,制备5-氟-2-甲基-1-(对甲硫基苯甲基亚甲基)-茚烯-3-乙酸。本发明涉及制备5-氟-2-甲基-1-(对甲硫基苯甲基亚甲基)-茚烯-3-乙酸的新工艺,其中间体和所述中间体的工艺。