A general approach toward the synthesis of 8-acylamidopyrazolo[1,5-a]-1,3,5-triazines
摘要:
An expedient synthesis of 8-acylamidopyrazolo[1,5-alpha]-1,3,5-triazines was developed by treating 8-amino-4-[N-(4aminophenyl)-N-(methyl)amino]pyrazolo[1,5-alpha]-1,3,5-triazine with various acyl chlorides following by the displacement of the so-formed N-(methyl)-N-[4-(acylamido)phenyl]amino leaving group with various amines. Applications to high-throughput synthesis are suggested. (C) 2003 Elsevier Science Ltd. All rights reserved.