New crystal form of sodium-glucose co-transporter inhibitor medicine and preparation method and use thereof

The present invention relates to a new crystal form of a sodium-glucose co-transporter inhibitor medicine (Sotagliflozin) and a preparation method and use thereof. In addition, the present invention relates to a pharmaceutical composition containing the new Sotagliflozin crystal form and a method of using the new Sotagliflozin crystal form and the pharmaceutical composition to treat diseases. The crystal form provided by the present invention has advantageous performances like good stability, relatively low hygroscopicity, exploitability and tractability of process, and the preparation method is simple, is low in cost, and has an important value on the optimization and development of the drug in the future.