Modular Synthesis of the Potent Antibiotic Amycolamicin and Diastereomeric Analogues Thereof.

Org Lett

State Key Laboratory of Chemical Biology, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China.

Published: April 2025


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Article Abstract

A modular approach to the potent, broad-spectrum antibiotic amycolamicin and seven diastereomeric analogues is described. The synthesis features bioinspired construction of the high-carbon amycolose segment, gold(I)-catalyzed high-yielding -glycosylation of the -decalin scaffold, -glycosylation of the bromoacetylated l-valine derivative, and condition-tuned late-stage -acylation of the tetramic acid motif. An assessment of the antibacterial properties of these synthetic molecules indicated that the correct stereochemistry is essential for the potent bioactivity of amycolamicin.

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http://dx.doi.org/10.1021/acs.orglett.5c00742DOI Listing

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