发明授权
- 专利标题: Process for preparing rac-bicalutamide and its intermediates
- 专利标题(中): 外加比卡鲁胺及其中间体的制备方法
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申请号: US10796313申请日: 2004-03-08
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公开(公告)号: US06861557B2公开(公告)日: 2005-03-01
- 发明人: Ben-Zion Dolitzky , Ofer Reany , Jenny Shammai
- 申请人: Ben-Zion Dolitzky , Ofer Reany , Jenny Shammai
- 申请人地址: HU Debrecen
- 专利权人: Biogal Gyógyszergyár Rt.
- 当前专利权人: Biogal Gyógyszergyár Rt.
- 当前专利权人地址: HU Debrecen
- 代理机构: Kenyon & Kenyon
- 主分类号: C07C69/675
- IPC分类号: C07C69/675 ; C07C231/02 ; C07C231/08 ; C07C255/49 ; C07C255/50 ; C07C255/58 ; C07C315/04 ; C07C317/14 ; C07C317/44 ; C07C317/46 ; C07C317/48 ; C07C317/50 ; C07C319/14 ; C07C323/52 ; C07F1/02
摘要:
The present invention relates to a new process for the synthesis of racemic and optically active bicalutamide starting from ethyl pyruvate and methyl methacrylate. The present invention discloses processes of preparing bicalutamide intermediates including ethyl-[2-{4-fluorophenyl sulfone}]-2-hydroxy propionate, 1,2-epoxy-2-methyl propionate and 2-hydrox-2-methyl-3-(4-fluorophenylthio) propionic acid. The present invention further discloses micronized rac-bicalutamide and the preparation thereof.
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