发明申请
US20090018337A1 PROCESS FOR THE PREPARATION OF A PHARMACEUTICAL INTERMEDIATE 审中-公开
制备药物中间体的方法

PROCESS FOR THE PREPARATION OF A PHARMACEUTICAL INTERMEDIATE
摘要:
The present invention relates to a process for the preparation of {2-[4-(α-phenyl-p-chlorobenzyl)-piperazin-1-yl]-ethoxy}-acetic acid-N,N-dimethylamide of the Formula (I) and enantiomers thereof. The compound of the Formula (I) or enantiomers thereof are important pharmaceutical intermediates suitable for direct transformation into non-sedating antihistamine type pharmaceutical active ingredients cetirizine and levocetirizine.
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