abstract |
(2S,4S)-2-cyano-4-fluoro-1-[(2-hydroxy-1,1-dimethyl)ethylamino]acetylpyrrolidine benzenesulfonate which shows an excellent DPPIV inhibitory activity and has properties required as a medicine, for example, a high stability. This compound can be easilyobtained in the form of highly stable crystals having a uniform shape and has a high solid stability. |