Darifenacin Nitrile Impurity

Chemical Name: (3S)-1-[2-(2,3-Dihydro-5-benzofuranyl)ethyl]-a,a-diphenyl-3-pyrrolidine acetonitrile; (S)-2-(1-(2-(2,3-Dihydrobenzofuran-5-yl)ethyl)pyrrolidin-3-yl)-2,2-diphenylacetonitrile; (S)-Darifenacin 2,2-Desdiphenylacetamide 2,2-Diphenylacetonitrile

Smile: N#CC(C1=CC=CC=C1)(C2=CC=CC=C2)[C@@H]3CN(CCC4=CC=C(OCC5)C5=C4)CC3