Invention Grant
- Patent Title: Process for the preparation of pure Finasteride
- Patent Title (中): 制备纯非那雄胺的方法
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Application No.: US11252860Application Date: 2005-10-18
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Publication No.: US07164022B2Publication Date: 2007-01-16
- Inventor: Ramesh Dandala , Divvela Venkata Naga Srinvasa Rao , Koilpillai Joseph Prabahar , Gollapalli Venkateswara Rao , Meenakshisunderam Sivakumaran
- Applicant: Ramesh Dandala , Divvela Venkata Naga Srinvasa Rao , Koilpillai Joseph Prabahar , Gollapalli Venkateswara Rao , Meenakshisunderam Sivakumaran
- Applicant Address: IN Hyderabad
- Assignee: Aurobindo Pharma Ltd.
- Current Assignee: Aurobindo Pharma Ltd.
- Current Assignee Address: IN Hyderabad
- Agent Jay R. Akhave
- Priority: IN1086/CHE/2004 20041018
- Main IPC: C07D221/18
- IPC: C07D221/18 ; C07D221/04
Abstract:
The present invention relates to an improved process for the preparation of pure Finasteride of Formula I, which comprises converting dihydrofinasteride to finasteride through novel protected dihydrofinasteride and protected finasteride intermediates.
Public/Granted literature
- US20060084671A1 Process for the preparation of pure finasteride Public/Granted day:2006-04-20
Information query
