application in medicinal chemistry. An organocatalyzed asymmetric Mannich reaction of 3-fluorooxindoles with dibenzo[b,f][1,4]oxazepines affording various seven-member cyclic amines containing chiral tetrasubstituted C–F stereocenters was developed. These reactions which were catalyzed by a bifunctional Cinchona alkaloid-derived thiourea catalyst afforded a wide range of substrates in moderate to high
3-Fluorooxindoles和二苯并[ b,f ] [1,4]
恶唑烷骨架是重要的药效基团,在药物
化学中具有重要的应用。有人开发了一种有机催化的3-
氟代
吲哚与二苯并[ b,f ] [1,4]氧氮杂
氮酮的不对称曼尼希反应,从而制得各种含有手性四取代的CF立体中心的七元环胺。这些由双功能
金鸡纳
生物碱衍生的
硫脲催化剂催化的反应以中等至高收率提供了多种底物,具有出色的非对映异构和对映选择性(最高88%收率,> 20:1 dr和> 99%ee)。还提出了可行的反应机理。