Microbial Oxidation of the Fusidic Acid Side Chain by Cunninghamella echinulata

Bibliographic Details
Title: Microbial Oxidation of the Fusidic Acid Side Chain by Cunninghamella echinulata
Authors: Abdel-Rahim S. Ibrahim, Khaled M. Elokely, Daneel Ferreira, Amany E. Ragab
Source: Molecules, Vol 23, Iss 4, p 970 (2018)
Publisher Information: MDPI AG, 2018.
Publication Year: 2018
Collection: LCC:Organic chemistry
Subject Terms: fusidic acid, Cunninghamella echinulata, C-26-oxidation, C-27-oxidation, Organic chemistry, QD241-441
More Details: Biotransformation of fusidic acid (1) was accomplished using a battery of microorganisms including Cunninghamella echinulata NRRL 1382, which converted fusidic acid (1) into three new metabolites 2–4 and the known metabolite 5. These metabolites were identified using 1D and 2D NMR and HRESI-FTMS data. Structural assignment of the compounds was supported via computation of 1H- and 13C-NMR chemical shifts. Compounds 2 and 3 were assigned as the 27-hydroxy and 26-hydroxy derivatives of fusidic acid, respectively. Subsequent oxidation of 3 afforded aldehyde 4 and the dicarboxylic acid 5. Compounds 2, 4 and 5 were screened for antimicrobial activity against different Gram positive and negative bacteria, Mycobacterium smegmatis, M. intercellulare and Candida albicans. The compounds showed lower activity compared to fusidic acid against the tested strains. Molecular docking studies were carried out to assist the structural assignments and predict the binding modes of the metabolites.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1420-3049
Relation: http://www.mdpi.com/1420-3049/23/4/970; https://doaj.org/toc/1420-3049
DOI: 10.3390/molecules23040970
Access URL: https://doaj.org/article/b22fbb39d59545c68d118c4f65606a35
Accession Number: edsdoj.b22fbb39d59545c68d118c4f65606a35
Database: Directory of Open Access Journals
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More Details
ISSN:14203049
DOI:10.3390/molecules23040970
Published in:Molecules
Language:English