作者:Shenghai Guo、Jiliang Wang、Yan Li、Xuesen Fan
DOI:10.1016/j.tet.2014.02.027
日期:2014.4
A simple and efficient procedure for the preparation of 5,6-dihydropyrazolo[1,5-c]quinazolines via CuCl-catalyzed tandem reaction of 5-(2-bromoaryl)-1H-pyrazoles with aldehydes and aqueous ammonia under nitrogen atmosphere has been developed. The usefulness of this novel methodology was showcased by its successful application in the preparation of a potential Eg5 inhibitor.
在氮气气氛下,通过CuCl催化5-(2-溴芳基)-1 H-吡唑与醛和氨水的串联反应,制备5,6-二氢吡唑并[1,5- c ]喹唑啉的简单有效的方法具有已开发。这种新方法的实用性在成功地制备潜在的Eg5抑制剂中得到了证明。