Invention Grant
- Patent Title: Process for making n-(diphenylmethyl)piperazines
- Patent Title (中): 制备n-（二苯基甲基）哌嗪的方法
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Application No.: US12313614Application Date: 2008-11-21
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Publication No.: US07989623B2Publication Date: 2011-08-02
- Inventor: Jie Zhu
- Applicant: Jie Zhu
- Applicant Address: NL Nijmegen
- Assignee: Synthon BV
- Current Assignee: Synthon BV
- Current Assignee Address: NL Nijmegen
- Agency: Muncy, Geissler, Olds & Lowe, PLLC
- Main IPC: C07D241/04
- IPC: C07D241/04 ; C07D295/00
Abstract:
The compound of formula (8), in racemic or single enantiomeric form, is useful in making N-(diphenylmethyl)-piperazines such as cetirizine and levocetrizine. wherein Z is preferably phenyl.
Public/Granted literature
- US20090143582A1 Process for making n-(diphenylmethyl)piperazines Public/Granted day:2009-06-04
Information query
