A novel process is provided for the preparation of chiral trans-2,3-disubstituted 5-oxotetrahydropyrans of structural formula (I):
wherein Ar is optionally substituted phenyl and P is a primary amine protecting group. These compounds are useful in the synthesis of dipeptidyl peptidase-IV inhibitors for the treatment of Type 2 diabetes. Also provided are useful intermediates obtained from the process.
提供了一种新的工艺用于制备手性trans-2,3-二取代-5-氧代
四氢吡喃的结构式(I)的化合物,其中Ar是可选择取代的苯基,P是一种一级胺保护基。这些化合物在合成二肽基肽酶-IV
抑制剂用于治疗2型糖尿病方面具有用途。同时还提供了从该工艺中获得的有用中间体。