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-氨基四氢吡喃的方法,更具体地说,涉及一种改进的合成2,3,5-取代
四氢吡喃衍
生物的方法,该衍
生物是用于制备
二肽基肽酶IV酶
抑制剂(
DPP-4
抑制剂)的中间体。