Synthesis of a poly-hydroxypyrolidine-based inhibitor of Mycobacterium tuberculosis GlgE.
Synthesis of a poly-hydroxypyrolidine-based inhibitor of Mycobacterium tuberculosis GlgE.
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DOI:
10.1021/jo501481r
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发表时间:
2014-10-17
期刊:
影响因子:
--
通讯作者:
Sucheck SJ
中科院分区:
文献类型:
--
作者:
Veleti SK;Lindenberger JJ;Thanna S;Ronning DR;Sucheck SJ
Long treatment times, poor drug compliance, and natural selection during treatment of Mycobacterium tuberculosis (Mtb) have given rise to extensively drug-resistant tuberculosis (XDR-TB). As a result, there is a need to identify new antituberculosis drug targets. Mtb GlgE is a maltosyl transferase involved in α-glucan biosynthesis. Mutation of GlgE in Mtb increases the concentration of maltose-1-phosphate (M1P), one substrate for GlgE, causing rapid cell death. We have designed 2,5-dideoxy-3-O-α-d-glucopyranosyl-2,5-imino-d-mannitol (9) to act as an inhibitor of GlgE. Compound 9 was synthesized using a convergent synthesis by coupling thioglycosyl donor 14 and 5-azido-3-O-benzyl-5-deoxy-1,2-O-isopropylidene-β-d-fructopyranose (23) to form disaccharide 24. A reduction and intramolecular reductive amination transformed the intermediate disaccharide 24 to the desired pyrolidine 9. Compound 9 inhibited both Mtb GlgE and a variant of Streptomyces coelicolor (Sco) GlgEI with Ki = 237 ± 27 μM and Ki = 102 ± 7.52 μM, respectively. The results confirm that a Sco GlgE-V279S variant can be used as a model for Mtb GlgE. In conclusion, we designed a lead transition state inhibitor of GlgE, which will be instrumental in further elucidation of the enzymatic mechanism of Mtb GlgE.
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影响因子:
3.6
作者:
KANG, J;LIM, GJ;KIM, MY
通讯作者:
KIM, MY
影响因子:
2.8
作者:
Simao, Ana-Catarina;Silva, Sandrina;Tatibouet, Arnaud
通讯作者:
Tatibouet, Arnaud
影响因子:
3.5
作者:
Veleti SK;Lindenberger JJ;Ronning DR;Sucheck SJ
通讯作者:
Sucheck SJ
DOI:
10.1073/pnas.89.11.4884
发表时间:
1992-06-01
影响因子:
11.1
作者:
WEBB, MR
通讯作者:
WEBB, MR
影响因子:
3.5
作者:
Provencher, L;Steensma, D H;Wong, C H
通讯作者:
Wong, C H