Synthesis of imidazo[1,5,4-de]quinoxalin-9-ones, benzimidazole analogues of pyrroloiminoquinone marine natural products

被引:38
作者
LaBarbera, DV [1 ]
Skibo, EB [1 ]
机构
[1] Arizona State Univ, Dept Chem & Biochem, Tempe, AZ 85287 USA
基金
美国国家科学基金会;
关键词
imidazoquinoxalinones; benzimidazole; pyrroloiminoquinone;
D O I
10.1016/j.bmc.2004.10.016
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The imidazoquinoxalinones 1 and 2 are benzimidazole analogues of indole-based marine natural products called makaluvamins. The stabilized cation 1 and the zwitterion 2 were prepared in similar to9 steps from readily available starting materials. Compound 1 is more cytostatic and cytotoxic than 2 and also shows activity in the hollow fiber assay. Unlike the indole-based natural products, 1 and 2 are not potent topoisomerase II inhibitors. Their pattern of cytotoxic and cyostatic activity could be related to inhibition of protein tyrosine kinases. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码:387 / 395
页数:9
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