dc.contributor.author |
Milbank, JBJ |
en |
dc.contributor.author |
Stevenson, Ralph |
en |
dc.contributor.author |
Ware, David |
en |
dc.contributor.author |
Chang, JYC |
en |
dc.contributor.author |
Tercel, Moana |
en |
dc.contributor.author |
Ahn, GO |
en |
dc.contributor.author |
Wilson, William |
en |
dc.contributor.author |
Denny, William |
en |
dc.date.accessioned |
2011-11-18T01:47:39Z |
en |
dc.date.issued |
2009 |
en |
dc.identifier.citation |
Journal of Medicinal Chemistry 52(21):6822-6834 2009 |
en |
dc.identifier.issn |
0022-2623 |
en |
dc.identifier.uri |
http://hdl.handle.net/2292/9364 |
en |
dc.description.abstract |
A series of metal complexes were prepared as potential prodrugs of the extremely toxic DNA minor groove alkylator 1-(chloromethyl)-5-hydroxy-3-[(5,6,7-trimethoxyindol-2-yl)carbonyl]-2,3-dihydro-1H-pyrrolo[3,2-f]quinoline (seco-6-azaCBI-TMI) and close analogues. The pyrrolo[3,2-f]quinoline cytotoxins were prepared from 2-methoxy-4-nitroaniline in a nine-step synthesis involving a Skraup construction of a quinoline intermediate, its appropriate functionalization, and a final radical cyclization. The metal complexes were prepared from these and the labile metal complex synthons [Co(cyclen)(OTf)2]+, [Cr(acac)2(H2O)2]+, and [Co2(Me2dtc)5]+. The cobalt complexes were considerably more stable than the free effectors and showed significant attenuation of the cytotoxicity of the latter, with IC50 ratios (complex/effector) of 50- to 150-fold, and substantial hypoxic cell selectivity, with IC50 ratios (oxic/hypoxic cells) of 20- to 40-fold. The cobalt complexes were also efficiently activated by ionizing radiation, with G values for loss of the compound close to the theoretical value for one-electron reduction of 0.68 μmol/J. This work extends earlier observations that cobalt cyclen complexes are suitable for both the bioreductive and radiolytic release of potent pyrrolo[3,2-f]quinoline effectors. |
en |
dc.language |
EN |
en |
dc.publisher |
American Chemical Society |
en |
dc.relation.ispartofseries |
Journal of Medicinal Chemistry |
en |
dc.rights |
Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. Details obtained from
http://www.sherpa.ac.uk/romeo/issn/0022-2623/ |
en |
dc.rights.uri |
https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm |
en |
dc.subject |
RADIATION-ACTIVATED PRODRUGS |
en |
dc.subject |
GROOVE ALKYLATING-AGENTS |
en |
dc.subject |
EXPLOITING TUMOR HYPOXIA |
en |
dc.subject |
N-O BONDS |
en |
dc.subject |
COBALT(III) COMPLEXES |
en |
dc.subject |
REDUCTIVE CLEAVAGE |
en |
dc.subject |
ANTICANCER DRUGS |
en |
dc.subject |
CBI-TMI |
en |
dc.subject |
DUOCARMYCINS |
en |
dc.subject |
MUSTARDS |
en |
dc.title |
Synthesis and evaluation of stable bidentate transition metal complexes of 1-(chloromethyl)-5-hydroxy-3-(5,6,7-trimethoxyindol-2-ylcarbonyl)-2,3-dihydro-1H-pyrrolo[3,2-f]quinoline (seco-6-azaCBI-TMI) as hypoxia selective cytotoxins |
en |
dc.type |
Journal Article |
en |
dc.identifier.doi |
10.1021/jm9008746 |
en |
pubs.issue |
21 |
en |
pubs.begin-page |
6822 |
en |
pubs.volume |
52 |
en |
dc.rights.holder |
Copyright: American Chemical Society |
en |
dc.identifier.pmid |
19821576 |
en |
pubs.author-url |
http://pubs.acs.org/doi/abs/10.1021/jm9008746 |
en |
pubs.end-page |
6834 |
en |
dc.rights.accessrights |
http://purl.org/eprint/accessRights/RestrictedAccess |
en |
pubs.subtype |
Article |
en |
pubs.elements-id |
89024 |
en |
pubs.org-id |
Medical and Health Sciences |
en |
pubs.org-id |
Medical Sciences |
en |
pubs.org-id |
Auckland Cancer Research |
en |
pubs.org-id |
Science |
en |
pubs.org-id |
Chemistry |
en |
pubs.org-id |
Science Research |
en |
pubs.org-id |
Maurice Wilkins Centre (2010-2014) |
en |
dc.identifier.eissn |
1520-4804 |
en |
pubs.record-created-at-source-date |
2010-09-01 |
en |
pubs.dimensions-id |
19821576 |
en |