Method for obtaining 1,3-difunctionalized pyrrolidine derivatives
申请人:Ragactives, S.L.
公开号:EP2236509A1
公开(公告)日:2010-10-06
The present invention relates to a method for obtaining 1,3-difunctionalized pyrrolidine derivatives, such as 3-(S)-(-)-(1-carbamoyl-1,1-diphenylmethyl)-1-[2-(2,3-dihydrobenzofuran-5-yl)ethyl]pyrrolidine, commonly known as Darifenacin, as well as to the intermediates of said method and the respective methods for preparing them.
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.