申请人:Nippon Chemiphar Co., Ltd.
公开号:US06111115A1
公开(公告)日:2000-08-29
A process for preparation of 2-(10,11-dihydro-10-oxodibenzo[b,f]thiepin-2-yl)propionic acid (i.e., Zaltoprofen) is performed by subjecting 2-(4-amino-3-carboxy-methylphenyl)propionic acid or its salt to diazotization and subsequent reaction with thiophenol to produce 2-(3-carboxymethyl-4-phenylthiophenyl)propionic acid or its salt, and subjecting the product to cyclization reaction. Other related processes and related compounds are also disclosed.
通过将2-(4-氨基-3-羧甲基苯基)丙酸或其盐暴露于重氮化作用并随后与硫酚反应,得到2-(3-羧甲基-4-苯基硫代苯基)丙酸或其盐,然后将产物暴露于环化反应,制备2-(10,11-二氢-10-氧代二苯并[b,f]噻吩-2-基)丙酸(即Zaltoprofen)的制备方法。还披露了其他相关工艺和相关化合物。