The present invention relates to a novel method for preparing a compound of formula (2) as the intermediate, which can be effectively used for preparation of a compound of formula (1) exhibiting good inhibitory activity against dipeptidyl peptidase IV enzyme.
                            本发明涉及一种新颖的制备化合物(2)中间体的方法,该中间体可有效用于制备一种具有良好抑制
二肽基肽酶IV酶活性的化合物(1)的方法。