| 摘要 |
There is provided EtO<SUB>2</SUB>C-CH<SUB>2</SUB>-(R)Cgl-Aze-Pab-OH, or a pharmaceutically-acceptable salt thereof, in a form which is substantially crystalline. It has been found that crystalline forms of EtO<SUB>2</SUB>C-CH<SUB>2</SUB>-(R)Cgl-Aze-Pab-OH have a high chemical and solid state stability when compared to amorphous forms of the compound.
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