Unprecedented deoxygenation at C-7 of the ansamitocin core during mutasynthetic biotransformations

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Knobloch, Tobias; Dräger, Gerald; Collisi, W.; Sasse, F.; Kirschning, Andreas: Unprecedented deoxygenation at C-7 of the ansamitocin core during mutasynthetic biotransformations. In: Beilstein Journal of Organic Chemistry 8 (2012), S. 861-869. DOI: http://dx.doi.org/10.3762/bjoc.8.96

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Sum total of downloads: 126




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Abstract: 
We describe the unprecedented formation of six ansamitocin derivatives that are deoxygenated at C-7 of the ansamitocin core, obtained during fermentation experiments by employing a variety of Actinosynnema pretiosum mutants and mutasynthetic approaches. We suggest that the formation of these derivatives is based on elimination at C-7/C-8 followed by reduction(s) of the intermediate enone. In bioactivity tests, only ansamitocin derivatives bearing an ester side chain at C-3 showed strong antiproliferative activity.
License of this version: CC BY 2.0 Unported
Document Type: Article
Publishing status: publishedVersion
Issue Date: 2012
Appears in Collections:Naturwissenschaftliche Fakultät

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pos. country downloads
total perc.
1 image of flag of Germany Germany 90 71.43%
2 image of flag of United States United States 19 15.08%
3 image of flag of China China 9 7.14%
4 image of flag of Taiwan Taiwan 1 0.79%
5 image of flag of Saudi Arabia Saudi Arabia 1 0.79%
6 image of flag of Russian Federation Russian Federation 1 0.79%
7 image of flag of Netherlands Netherlands 1 0.79%
8 image of flag of Kenya Kenya 1 0.79%
9 image of flag of Canada Canada 1 0.79%
10 image of flag of Austria Austria 1 0.79%
    other countries 1 0.79%

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