申请人:Myers Andrew G.
公开号:US09073829B2
公开(公告)日:2015-07-07
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 thought 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 more efficient routes for preparing the enone intermediate and allows for substituents at positions 4a, 5, 5a, and 12a of the tetracycline ring system.
四环素类抗生素在过去50年中在治疗传染病方面发挥了重要作用。然而,四环素类抗生素在人类和兽医药品中的增加使用导致许多之前被认为对四环素类抗生素敏感的生物产生了抗药性。最近通过手性烯酮中间体的模块化合成开发了四环素类似物,使得从未制备过的新型四环素类似物能够高效合成。本发明提供了更有效的制备烯酮中间体的方法,并允许在四环素环系统的4a、5、5a和12a位置进行取代基。