Invention Grant
- Patent Title: Process for the preparation of 4-dimethylaminocrotonic acid
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Application No.: US15315880Application Date: 2015-06-02
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Publication No.: US09758471B2Publication Date: 2017-09-12
- Inventor: Shyam Sunder Verma , Shravan Kumar Singh , Kaptan Singh , Mohan Prasad
- Applicant: SUN PHARMACEUTICAL INDUSTRIES LIMITED
- Applicant Address: IN Mumbai
- Assignee: Sun Pharmaceutical Industries Limited
- Current Assignee: Sun Pharmaceutical Industries Limited
- Current Assignee Address: IN Mumbai
- Priority: IN1458/DEL/2014 20140602
- International Application: PCT/IB2015/054177 WO 20150602
- International Announcement: WO2015/186065 WO 20151210
- Main IPC: C07C227/18
- IPC: C07C227/18 ; C07D239/94
Abstract:
The present invention provides a process for the preparation of 4-dimethylaminocrotonic acid of Formula (II) or its salts, which is used as an intermediate for the preparation of afatinib or its salts.
Public/Granted literature
- US20170107172A1 PROCESS FOR THE PREPARATION OF 4-DIMETHYLAMINOCROTONIC ACID Public/Granted day:2017-04-20
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