发明授权
- 专利标题: Process for producing valproic acid
- 专利标题(中): 丙戊酸生产方法
-
申请号: US941722申请日: 1997-10-01
-
公开(公告)号: US5856569A公开(公告)日: 1999-01-05
- 发明人: Mose Santaniello , Carlo Alberto Bagolini , Agostino Uttaro , Silverio Fontana
- 申请人: Mose Santaniello , Carlo Alberto Bagolini , Agostino Uttaro , Silverio Fontana
- 申请人地址: ITX Rome
- 专利权人: Sigma-Tau Industrie Farmaceutiche Riunite S.p.A.
- 当前专利权人: Sigma-Tau Industrie Farmaceutiche Riunite S.p.A.
- 当前专利权人地址: ITX Rome
- 优先权: ITXRM96A0688 19961010
- 主分类号: A61K31/20
- IPC分类号: A61K31/20 ; B01J31/22 ; C07B61/00 ; C07C51/02 ; C07C51/09 ; C07C51/41 ; C07C53/126 ; C07C67/343 ; C07C69/02 ; C07C53/128
摘要:
A process for making valproic acid from an alkyl alkanoylacetate is disclosed. The alkyl alkanoylacetate is reacted with an n-propyl halide in a biphasic system in the presence of a base and a phase transfer catalyst. The product mixture is acidified to convert the resulting valproate salt into valproic acid.
信息查询
IPC分类: