A new and practical boronic acid catalyzed intramolecular cyclodehydration of ureas for the synthesis of LFA-1 antagonists
作者:Rogelio P. Frutos、Thomas Tampone、Jason A. Mulder、Yibo Xu、Diana Reeves、Xiao-Jun Wang、Li Zhang、Dhileepkumar Krishnamurthy、Chris H. Senanayake
DOI:10.1016/j.tetlet.2011.03.007
日期:2011.5
A streamlined and practical approach to 1H-imidazo[1.2-alpha]imidazol-2-one LFA-1 antagonist (1) that features as the key step a novel intramolecular boronic acid catalyzed cyclocondensation of a urea and an amide is reported. (C) 2011 Elsevier Ltd. All rights reserved.