The present invention relates to process for preparation of novel compounds which are acting as inhibitors of dipeptidyl peptidase-IV enzyme and is depicted by the structural formula as given below: Formula VI. Which are useful in the treatment or prevention of diseases in which the dipeptidylpeptidase-IV enzyme is involved, such as diabetes and particularly type-2 diabetes.
                            本发明涉及一种制备新化合物的方法,该化合物作为二肽基肽酶-IV酶的
抑制剂,并由以下结构式VI所示:该化合物在治疗或预防二肽基肽酶-IV酶参与的疾病,如糖尿病和特别是2型糖尿病方面具有用处。