申请人:Daiichi Sankyo Company, Limited
公开号:US20210188823A1
公开(公告)日:2021-06-24
The present invention relates to a novel method for producing diarylpyridine derivatives, and the object of the present invention is to provide a novel, industrially useful method. The present inventors developed a novel method for synthesizing pyridine rings without using palladium, a strong base, or a high-temperature reaction. In particular, they successfully developed a method that can be used to synthesize iminium salts as intermediates, synthesize cyano compounds from these iminium salts, and cyclize the cyano compounds into pyridines under very mild reaction conditions.
本发明涉及一种生产二芳基吡啶衍生物的新方法,本发明的目的是提供一种新颖且在工业上有用的方法。本发明的发明者开发了一种新方法,可以合成吡啶环而无需使用钯、强碱或高温反应。特别是,他们成功地开发了一种可以用来合成亚胺盐作为中间体,从这些亚胺盐合成氰化物,并在非常温和的反应条件下将氰化物环化为吡啶的方法。