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

Abstract:

: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 approximately 9 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.

journal_name

Bioorg Med Chem

authors

Labarbera DV,Skibo EB

doi

10.1016/j.bmc.2004.10.016

subject

Has Abstract

pub_date

2005-01-17 00:00:00

pages

387-95

issue

2

eissn

0968-0896

issn

1464-3391

pii

S0968-0896(04)00790-4

journal_volume

13

pub_type

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