6-Amino-2,4,5-trimethylpyridin-3-ols: A new general synthetic route and antiangiogenic activity
作者:Dong-Guk Kim、Youra Kang、Hyunji Lee、Eun Kyung Lee、Tae-gyu Nam、Jung-Ae Kim、Byeong-Seon Jeong
DOI:10.1016/j.ejmech.2014.03.045
日期:2014.5
A new synthetic strategy for preparation of a wide range of 6-amino-2,4,5-trimethylpyridin-3-ols from pyridoxine·HCl via a six-step sequence has been developed. This approach features an introduction of various amino groups to C(6)-position of 3-benzyloxy-6-bromo-2,4,5-trimethylpyridine (13), a key intermediate, by a Buchwald–Hartwig amination reaction using palladium(0) transition metal, which certainly
已开发出一种新的合成策略,该方法可通过六步法从吡ido醇·HCl制备多种6-氨基-2,4,5-三甲基吡啶-3-醇。这种方法的特点是,通过使用钯(Buchwald-Hartwig胺化反应),将重要的氨基引入到3-苄氧基-6-溴-2,4,5-三甲基吡啶(13)的C(6)位置,该中间体是关键中间体。 0)过渡金属,它肯定会扩大氨基取代基的范围。使用本文所述方法制备的某些类似物在鸡绒膜尿囊膜(CAM)分析中显示出高水平的抗血管生成和抗肿瘤活性,证明了这些新的氨基吡啶并作为抗血管生成剂的潜力。