作者:Mark J. Thompson、Beining Chen
DOI:10.1016/j.tetlet.2008.06.067
日期:2008.9
A flexible route to novel 5-aminothiazoles has been developed based on cyclisation of diamide adducts, prepared using the Ugi reaction, in the presence of Lawesson's reagent. The Walborsky reagent ( 1,1,3,3-tetramethylbutyl isocyanide) was used as the isonitrile component, facilitating subsequent deprotection of the N-alkyl group to yield free 5-aminothiazoles, which were prepared with a variety of substituents at the 2- and 4-positions. (C) 2008 Elsevier Ltd. All rights reserved.