PROCESS FOR PREPARING 2-(10,11-DIHYDRO-10-OXODIBENZO b,f]THIEPIN-2-YL)PROPIONIC ACID AND INTERMEDIATES THEREFOR
申请人:NIPPON CHEMIPHAR CO., LTD.
公开号:EP0922704A1
公开(公告)日:1999-06-16
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-carboxymethylphenyl)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.
一种制备 2-(10,11-二氢-10-氧代二苯并[b,f]硫杂卓-2-基)丙酸(即扎托布洛芬)的工艺是将 2-(4-氨基-3-羧甲基苯基)丙酸或其盐进行重氮化,然后与噻吩酚反应生成 2-(3-羧甲基-4-苯基噻吩基)丙酸或其盐,再将产物进行环化反应。还公开了其他相关工艺和相关化合物。