The present invention relates to a process for preparing 3-amino tetrahydropyrans and, more particularly, to an improved method for synthesizing a 2,3,5-substituted tetrahydropyran derivative, intermediate being used in the preparation of dipeptidyl peptidase-IV enzyme inhibitors (DPP-4 inhibitors).
本发明涉及一种制备
3-氨基四氢吡喃的工艺,更具体地说,涉及一种合成2,3,5-取代的
四氢吡喃衍
生物的改进方法,该衍
生物中间体可用于制备二肽基肽酶-IV酶
抑制剂(
DPP-4
抑制剂)。