The tetracycline class of antibiotics has played a major role in the treatment of infectious diseases for the past 50 years. However, the increased use of the tetracyclines in human and veterinary medicine has led to resistance among many organisms previously susceptible to tetracycline antibiotics. The recent development of a modular synthesis of tetracycline analogs through a chiral enone intermediate has allowed for the efficient synthesis of novel tetracycline analogs never prepared before. The present invention provides a more efficient route for preparing the enone intermediate.
四环素类抗生素已经在过去50年的传染病治疗中发挥了重要作用。然而,
四环素在人类和兽医医学中的广泛使用导致许多之前对
四环素抗生素敏感的
生物体产生了抗药性。最近,通过手性烯酮中间体的模块化合成,成功地合成了以前从未制备过的新型
四环素类似物。本发明提供了一种更有效的制备烯酮中间体的方法。