(2S,4s)-4-fluoro-1-[4-fluoro-beta-(4-fluorophenyl)-I-phenylalanyl]-2-pyrrolidinecarbonitrile p-toluenesulfonic acid salt and anhydrous crystalline forms thereof
The present invention includes anhydrous crystalline forms of (2S,4S)-4-fluoro-1-[4-fluoro-β-(4-fluorophenyl)-L-phenylalanyl]-2-pyrrolidinecarbonitrile p-toluenesulfonic acid salt.