化学学报 ›› 2000, Vol. 58 ›› Issue (1): 100-104. 上一篇    下一篇

研究论文

非甾体消炎药萘普生不对称合成研究

胡艾希;郭灿城;范国枝   

  1. 湖南大学化学化工学院
  • 发布日期:2000-01-15

Asymmetric synthesis of naproxen

Hu Aixi;Guo Cancheng;Fan Guozhi   

  • Published:2000-01-15

萘普生[(S)-(+)-S-(6'-甲氧基-2'-萘基)丙酸]是一种非常重要的非甾体消炎镇痛药。以(2R,3R)-酒石酸二甲酯为手性辅助剂,2-甲氧基萘经溴代、丙酰化、缩酮化、不对称溴化、水解、立体专一性重排和催化氢转移氢解等反应合成了光学活性萘普生,化学收率44%。制备的萘普生的光学纯度([α]~D^2^5=+63.5ⅲ)符合中华人民共和国药典(1995年版)的要求。

关键词: 萘普生, 酒石酸二甲酯, 溴化反应, 重排反应, 消炎镇痛药

Naproxen was synthesized from 2-methoxynaphthalene, using (2R, 3R)- dimethyl tartrate as chiral auxiliary, DBDMH and Br~2 as brominating agent, KH~2PO~4 as rearrangement agent, 10% Pd-C/HCO~2NH~4 as catalytic transfer hydrogenolytic agent via propionylization, asymmetric bromination, hydrolysis, rearrangement and catalytic tranfer hydrogenolysis. Totalyield was 44% (based on 2- methoxynaphthalene) with the e.e. value of product being 94%.

Key words: APROXEN, DIMETHYL TARTRATE, BROMINATION REACTION, REARRANGEMENT REACTION, ANALGESICS ANTI-INFLAMMATORY

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