The synthesis of 2-amino-4(3H)-quinazolinones and related heterocycles via a mild electrocyclization of aryl guanidines
作者:Zachary S. Sales、Neelakandha S. Mani、Brett D. Allison
DOI:10.1016/j.tetlet.2018.03.034
日期:2018.4
A new method for the preparation of 2-amino-4(3H)-quinazolinones and similar fused heterocycles is described. Simply warming a mixture of an aryl guanidine and carbonyl diimidazole in acetonitrile results in formation of a putative N-amidinoisocyanate intermediate which undergoes a 6π-electron electrocyclic reaction with the aryl ring to generate the quinazolinone ring system. The mild conditions are
[EN] NOVEL 2,3-DIAMINO-QUINAZOLINONE DERIVATIVES AND THEIR MEDICAL USE<br/>[FR] NOUVEAUX DÉRIVÉS DE 2,3-DIAMINO-QUINAZOLINONE ET LEUR UTILISATION MÉDICALE
申请人:NEUROSEARCH AS
公开号:WO2010051819A1
公开(公告)日:2010-05-14
The present invention relates to novel 2,3-diamino-quinazolinone derivatives having medical utility, to use of the derivatives for the manufacture of a medicament, to pharmaceutical compositions comprising the derivatives, and to methods of treating a disorder, disease or a condition responsive to activation of KV7 channels.