Solid-phase synthesis of 6-hydroxy-2,4-diaminoquinazolines
作者:Csaba Wéber、Attila Bielik、Ádám Demeter、István Borza、Györgyi I. Szendrei、György M. Keserű、István Greiner
DOI:10.1016/j.tet.2005.07.053
日期:2005.9
A new method for the solid-phase synthesis of 6-hydroxy-2,4-diaminoquinazolines has been developed. The synthesis utilizes solid-phase bound 6-hydroxy-2,4-dichloroquinazoline as a key intermediate. Sequential substitution of the two chlorines furnishes the title compounds regioselectively with high purity. A library of 18 X 22 compounds demonstrates the general utility of this approach. (c) 2005 Elsevier Ltd. All rights reserved.