Pharmaceutical composition containing Nmethyl-N-[(1S)-1-phenyl-2-((3S)-3-hydroxypyrrolidin-1-yl)-ethyl]-2,2-diphenylacetamide.

Abstract

The invention relates to a pharmaceutical composition characterized by a content of at least N-¬methyl-N-[(1S)-1-phenyl-2((3S)-3-hydroxypyrrolidin-1-yl)ethyl]-2,2diphenylacetamide or N-methyl-¬N-[(1R)1-phenyl-2-((3R)-3-hydroxypyrrolidin-1yl)ethyl] -2,2-diphenylacetamide, and the novel compound N-methyl-N-[(1S)-1phenyl-2- ((3S)-3-hydroxypyrrolidin-1yl)ethane] and N-methyl-N(1R)-1-phenyl2-((3R)-3-hydroxypyrrolidin-1-yl)etharie] which are prepared as intermediates.