Invention Grant
- Patent Title: Process for the preparation of an intermediate of tadalafil
- Patent Title (中): 制备他达拉非中间体的方法
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Application No.: US12666606Application Date: 2008-06-28
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Publication No.: US08445698B2Publication Date: 2013-05-21
- Inventor: Dattatray B. Patil , Killol Patel , Ashok Prasad , Mohan Prasad
- Applicant: Dattatray B. Patil , Killol Patel , Ashok Prasad , Mohan Prasad
- Applicant Address: IN New Delhi
- Assignee: Ranbaxy Laboratories Limited
- Current Assignee: Ranbaxy Laboratories Limited
- Current Assignee Address: IN New Delhi
- Priority: IN1402/DEL/2007 20070629
- International Application: PCT/IB2008/052609 WO 20080628
- International Announcement: WO2009/004557 WO 20090108
- Main IPC: C07D487/00
- IPC: C07D487/00
Abstract:
The present invention relates to a process for the preparation of cis-intermediate of Formula II, which is useful synthetic intermediates in the preparation of tadalafil.
Public/Granted literature
- US20100228030A1 PROCESS FOR THE PREPARATION OF INTERMEDIATES OF TETRACYCLIC COMPOUNDS Public/Granted day:2010-09-09
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