申请人:——
公开号:US20030105076A1
公开(公告)日:2003-06-05
A process for the preparation of 10-methoxycarbamazepine, an important intermediate in the preparation of 10-oxo-10, 11-dihydro-5H-dibenz(b,f)azepine-5-carboxamide(oxcarbazepine) from 10-methoxy-5H-dibenz(b,f)azepine(10-methoxyiminostilbene), is disclosed, which process comprises reacting 10-methoxyiminostilbene with cyanic acid (HOCN) in the presence of a mild acidic reagent in a solvent. Also disclosed is an improved method for the hydrolysis of 10-methoxycarbamazepine to oxcarbazepine, which method comprises carrying out the hydrolysis in a biphasic system chosen such that the oxcarbazepine is substantially insoluble in both phases, whereas the by-products or impurities are soluble in at least one of the phases. The oxcarbazepine thereby prepared is an anticonvulsant, and has been proposed for use as an anti-epileptical agent in the treatment of AIDS-related neural disorders, and for the treatment of Parkinson's disease and/or Parkinsonian syndromes.
一种制备10-甲氧卡马西平的方法被披露,该方法是从10-甲氧基-5H-二苯并(b,f)氮杂环庚-5-甲酰胺(奥卡西平)的制备中间体10-氧代-10,11-二氢-5H-二苯并(b,f)氮杂环庚-5-甲酰胺(奥卡西平)开始的,该方法包括在溶剂中,在温和酸性试剂的存在下,将10-甲氧基亚胺基蒽与氰酸(HOCN)反应。还披露了一种改进的方法,用于将10-甲氧卡马西平水解为奥卡西平,该方法包括在选择的两相系统中进行水解,使得奥卡西平在两相中均基本不溶解,而副产物或杂质在至少一相中可溶解。因此制备的奥卡西平是一种抗癫痫药物,并已被提议用于治疗艾滋病相关的神经疾病,并用于帕金森病和/或帕金森综合征的治疗。