| 摘要 |
The present invention deals with an enantiomerically enriched compound having the formula, I: <IMAGE>, or a tautomeric formula thereof and/or a pharmaceutically acceptable salt thereof and/or a pharmaceutically acceptable solvate thereof, where T represents, for example, a derivative of ethoxyphenyl and T<1> is S; in which more than 50 percent p/p of said compound is present in the form of a compound of formula, IA: <IMAGE>, or a tautomeric formula thereof and/or a pharmaceutically acceptable salt thereof and/or a pharmaceutically acceptable solvate thereof, where T and T<1> are as defined in regard to formula I and the carbon atom ** is an enantiomeric carbon atom. The compounds thus prepared are used in medicine, especially in treatment of hyperglycaemia.
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