Many pathogens, including
Mycobacterium tuberculosis
and
Yersinia pestis
, rely on an iron acquisition system based on siderophores, secreted iron-chelating compounds with extremely high Fe(III) affinity. The compounds of the invention are inhibitors of domain salicylation enzymes, which catalyze the salicylation of an aroyl carrier protein (ArCP) domain to form a salicyl-ArCP domain thioester intermediate via a two-step reaction. The compounds include the intermediate mimic 5′-O—[N-(salicyl)sulfamoyl]-adenosine (salicyl-AMS) and analogs thereof. These compounds are inhibitors of the salicylate activity of MbtA, YbtE, PchD, and other domain salicylation enzymes involved in the biosynthesis of siderophores. Therefore, these compounds may be used in the treatment of infection caused by microorganisms which rely on siderphore-based iron acquisition systems. Pharmaceutical composition and methods of using these compounds to treat or prevent infection are also provided as well as methods of preparing the inventive compounds.
US8461128B2
申请人:——
公开号:US8461128B2
公开(公告)日:2013-06-11
US8946188B2
申请人:——
公开号:US8946188B2
公开(公告)日:2015-02-03
Fieser et al., Journal of the American Chemical Society, 1948, vol. 70, p. 3177
作者:Fieser et al.
DOI:——
日期:——
Stereoselective [4+2] Cycloaddition of Singlet Oxygen to Naphthalenes Controlled by Carbohydrates
作者:Marcel Bauch、Werner Fudickar、Torsten Linker
DOI:10.3390/molecules26040804
日期:——
peroxides are often too labile for isolation or further transformations into enantiomerically pure products. Herein, we describe the oxidation of naphthalenes by singlet oxygen, where the face selectivity is controlled by carbohydrates for the first time. The synthesis of the precursors is easily achieved starting from naphthoquinone and a protected glucosederivative in only two steps. Photooxygenations