Method For Determining Enantiomeric Purity Of Darifenacin And Intermediates
申请人:Madrid Nuria Soldevilla
公开号:US20080312455A1
公开(公告)日:2008-12-18
The present invention relates to a method for differentiating and quantifying the enantiomers, thereby determining the enantiomeric purity, of darifenacin and its intermediate compounds and salts thereof. In addition, the invention relates to a method for differentiating and quantifying the enantiomers, thereby determining the enantiomeric purity of compounds of formula (I):
wherein Y is hydrogen or a substituent of the formula:
including the differentiation and quantification of compounds of formula (I) of varying enantiomeric purity from their corresponding enantiomers. The invention further relates to a process for preparing enantiomerically pure darifenacin using enantiomerically pure starting compounds which have been previously differentiated and quantified according to the method of the invention.