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Novel adenosine-derived inhibitors of Cryptosporidium parvum inosine 5'-monophosphate dehydrogenase.
The Journal of Antibiotics ( IF 2.1 ) Pub Date : 2019-07-12 , DOI: 10.1038/s41429-019-0199-3
Kengo Shigetomi 1 , Albertus Eka Yudistira Sarwono 1 , Satoshi Ichikawa 2 , Makoto Ubukata 1
Affiliation  

We have found cyclophane-type adenosine derivatives having p-quinone amide moieties (1 and 2) as weak inhibitors of Cryptosporidium parvum inosine 5'-monophosphate dehydrogenase (CpIMPDH) from the Hokkaido University Chemical Library via the luciferase-based high-throughput screening. To obtain more potent inhibitors, we synthesized four new derivatives free from cyclophane rings (3-6). The N-H derivatives 3 and 5 showed more potent activities (24.4 and 11.1 μM, respectively) in the presence of dithiothreitol (DTT), whereas the N-methyl derivative 4 indicated more potent activity (2.1 μM) without DTT. Conformational analysis of compounds 3 and 4 suggested that N-H amide 3 binds to IMP-binding site in the DTT mediated manner.

中文翻译:

新型腺苷衍生的隐孢子虫肌苷 5'-单磷酸脱氢酶抑制剂。

我们通过基于荧光素酶的高通量筛选从北海道大学化学图书馆发现了具有对醌酰胺部分(1 和 2)的环烷型腺苷衍生物作为隐孢子虫肌苷 5'-单磷酸脱氢酶 (CpIMPDH) 的弱抑制剂。为了获得更有效的抑制剂,我们合成了四种不含环芳环的新衍生物 (3-6)。NH 衍生物 3 和 5 在二硫苏糖醇 (DTT) 存在下表现出更强的活性(分别为 24.4 和 11.1 μM),而 N-甲基衍生物 4 在没有 DTT 的情况下表现出更强的活性(2.1 μM)。化合物 3 和 4 的构象分析表明 NH 酰胺 3 以 DTT 介导的方式与 IMP 结合位点结合。
更新日期:2019-11-18
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