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。