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 Chemjournal_title
Bioorganic & medicinal chemistryauthors
Labarbera DV,Skibo EBdoi
10.1016/j.bmc.2004.10.016subject
Has Abstractpub_date
2005-01-17 00:00:00pages
387-95issue
2eissn
0968-0896issn
1464-3391pii
S0968-0896(04)00790-4journal_volume
13pub_type
杂志文章abstract::Seven new taxanes were isolated from the needles of the Canadian yew: unusual functional groups, positions and/or stereochemical features are described. Their chemical structures were rigorously characterized by detailed high resolution NMR analyses and confirmed by high resolution Fast Atom Bombardment Mass Spectrome...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/s0968-0896(02)00347-4
更新日期:2003-01-17 00:00:00
abstract::Plants of the genera Ferula and Ferulago are known for their complex content in bioactive secondary metabolites such as coumarins, phenylpropanoids, and sesquiterpenes. We used the ground parts of Ferula communis subsp. communis, Ferula glauca subsp. glauca and Ferulago campestris as natural sources for the isolation ...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2011.08.021
更新日期:2011-10-01 00:00:00
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journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2013.01.047
更新日期:2013-04-01 00:00:00
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journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2014.01.049
更新日期:2014-03-15 00:00:00
abstract::The risk of the presence of haloacetic acids in drinking water as chlorination by-products and the shortage of experimental mutagenicity data for most of them requires a research work. This paper describes a QSAR model to predict direct mutagenicity for these chemicals. The model, able to describe more than 90% of the...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2008.03.070
更新日期:2008-05-15 00:00:00
abstract::The effect of various natural flavonoids, cinnamic acid derivatives, and a series of synthetic flavones on cell proliferation was evaluated in vitro in a panel of established human and murine tumor cell lines. The most potent antiproliferative agents were caffeic acid n-butyl ester (12) > 2'-nitroflavone (26) > caffei...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2005.12.021
更新日期:2006-05-01 00:00:00
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journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2019.02.034
更新日期:2019-04-15 00:00:00
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journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/s0968-0896(96)00259-3
更新日期:1997-05-01 00:00:00
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journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2015.04.031
更新日期:2015-07-01 00:00:00
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journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2013.03.031
更新日期:2013-06-01 00:00:00
abstract::AIDS has become the leading pandemic disease, and is the cause of death worldwide. Presently, HAART treatment, a combination of reverse transcriptase (RT) and protease inhibitors is also unsuccessful due to the virus getting resistant to the drugs because of mutational changes. Two types of RT inhibitors exist namely ...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章,评审
doi:10.1016/j.bmc.2009.06.060
更新日期:2009-08-15 00:00:00
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journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2007.10.102
更新日期:2008-02-01 00:00:00
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journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2005.11.041
更新日期:2006-04-15 00:00:00
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journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2005.06.048
更新日期:2005-09-15 00:00:00
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journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2006.10.022
更新日期:2007-01-15 00:00:00
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journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2004.03.043
更新日期:2004-06-01 00:00:00
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journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2004.03.011
更新日期:2004-05-15 00:00:00
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journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/s0968-0896(00)00006-7
更新日期:2000-04-01 00:00:00
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journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2016.01.025
更新日期:2016-03-01 00:00:00
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journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2020.115713
更新日期:2020-08-31 00:00:00
abstract::It was shown that a new taxane analogue 3, which exhibited both in vitro antitumor activity and in vivo efficacy by both i.v. and p.o. administration, was prone to be metabolized by human liver microsomes. We identified a major metabolite, M-1, generated by human liver microsomes as 20a, a hydroxylated compound at the...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/s0968-0896(03)00454-1
更新日期:2003-10-01 00:00:00
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journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2019.115193
更新日期:2020-01-01 00:00:00
abstract::The preparation and biological evaluation of a novel series of dimeric camptothecin derivatives are described. All the new compounds showed a significant ability to inhibit human tumor cell growth with IC(50) values ranging from 0.03 to 12.2 μM. The interference with the activity of the nuclear enzymes topoisomerases ...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2010.09.069
更新日期:2010-12-15 00:00:00
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journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2015.10.048
更新日期:2015-12-01 00:00:00
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journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2008.07.091
更新日期:2008-09-15 00:00:00
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journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/s0968-0896(01)00236-x
更新日期:2002-01-01 00:00:00
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journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
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更新日期:1998-08-01 00:00:00
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journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2004.10.048
更新日期:2005-02-01 00:00:00
abstract::Kahalalide F (KF) and the regioisomer isoKF are novel anticancer drugs of marine origin and currently under clinical investigation. Here we report the synthesis of two new KF analogs with significant in vitro and in vivo antifungal and antitumor activities. The primary amine hydrogen of ornithine in KF has been replac...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/j.bmc.2011.06.050
更新日期:2011-11-15 00:00:00
abstract::As part of a continuing effort aimed at the development of selective, efficacious, and centrally active m1 muscarinic agonists for the treatment of Alzheimer's disease, a series of amide and hydrazide amidine derivatives (2a-e and 3b-d) was synthesized and examined for muscarinic agonist activity. Preliminary biochemi...
journal_title:Bioorganic & medicinal chemistry
pub_type: 杂志文章
doi:10.1016/0968-0896(96)00152-6
更新日期:1996-10-01 00:00:00