Novel tricyclic azepine derivatives: Biological evaluation of pyrimido[4,5-b]-1,4-benzoxazepines, thiazepines, and diazepines as inhibitors of the epidermal growth factor receptor tyrosine kinase
摘要:
Novel tricyclic derivatives containing an oxazepine, thiazepine, or diazepine ring were studied for their EGFR tyrosine kinase inhibitory activity. While the oxazepines were in general more potent than thiazepines, the diazepines displayed somewhat different structure-activity relationships. Moreover, the diazepines, in contrast to the oxazepines, showed appreciable inhibitory activity against the KDR tyrosine kinase. Furthermore, both oxazepines and diazepines demonstrated significant ability to inhibit autophosphorylation of EGFR in DiFi cells (generally, IC50 values in the single-digit micromolar to submicromolar range). (c) 2006 Elsevier Ltd. All rights reserved.
Preparation of Substituted Pyrimido[4,5-<i>b</i>]-1,4-benzoxazepines, Thiazepines, and Diazepines via a Pictet−Spengler Cyclization
作者:Matthew A. J. Duncton、Leon M. Smith、Sabina Burdzovic-Wizeman、Aaron Burns、Hu Liu、Yunyu Mao、Wai C. Wong、Alexander S. Kiselyov
DOI:10.1021/jo051419g
日期:2005.11.1
A synthesis of the title compounds, which have found use as inhibitors of certain receptor tyrosine kinases, was achieved using a Pictet−Spengler cyclization as a key step.