A Facile One-Pot Preparation of Alkyl Aminoaryl Sulfides for the Synthesis of GW7647 as an Agonist of Peroxisome Proliferator-Activated Receptor α
作者:Jungyeob Ham、Sung Jin Cho、Jaeyoung Ko、Jungwook Chin、Heonjoong Kang
DOI:10.1021/jo060361i
日期:2006.7.1
We have developed two simple and high yielding one-pot syntheses of alkyl aminoaryl sulfides containing a series of four-steps: in situ protection of the free amine by reaction with a Grignard reagent, halogen−lithium exchange, sulfur insertion, and a substitution reaction with various electrophiles. Through this protocol, we have successfully synthesized tert-butyl-2-[4-(2-aminoethyl)phenylsulfan
我们开发了两个简单且高产率的一锅合成烷基氨基芳基硫醚,包含一系列四个步骤:通过与格氏试剂的反应原位保护游离胺,卤素-锂交换,硫插入和取代反应与各种亲电试剂。通过该方案,我们以92%的收率成功合成了叔丁基-2- [4-(2-(2-氨基乙基)苯基硫烷基] -2-甲基丙酸酯,这是合成GW7647和GW9578(脲基TiBAs)的关键中间体。此外,我们能够将GW7647的总产量提高到66%,是先前报道的产量的3倍。