reversal of diastereoselectivity was achieved depending on the cyclization methodology employed. The different orientation of the C3 substituent in our 3-substituted 1,4-benzodiazepin-5-ones with respect to the most studied 1,4-benzodiazepin-2-ones makes them complementary in the development of new drugs because the primary source of binding selectivity of 1,4-benzodiazepines is the selective recognition
对映体纯的3-羧
酰胺-1,4-
苯并二
氮杂-5-
酮是通过Ugi反应,随后的Staudinger / aza-Wittig或还原反应仅两步合成的。根据所采用的环化方法,可以完全逆转非对映选择性。与我们研究最多的1,4-
苯并二
氮杂-2-
酮相对,我们的3-取代的1,4-
苯并二
氮杂-2-
酮中C3取代基的取向不同,这使它们在新药开发中具有互补性,因为1,4-
苯并二
氮杂的结合选择性是受体对
配体构象的选择性识别。