先前的研究表明,Fe II /α-酮戊二酸依赖性双加氧酶AsqJ诱导构巢曲霉在viridicatin生物合成中的骨架重排,从苯并[1,4]二氮杂-2,5-二酮底物生成喹诺酮骨架。我们报告说,仅通过改变苯并二氮杂二酮底物中的取代基,AsqJ即可催化另外的,完全不同的反应。通过底物筛选,功能探针的应用和计算分析来建立这种新机制。AsqJ消费税H 2由合适的苯并[1,4]二氮杂-2-5,5-二酮底物的杂环结构生成CO,生成喹唑啉酮。这种新颖的AsqJ催化途径由复杂底物中的单个取代基控制。AsqJ的这种独特的底物定向反应性可实现喹诺酮或喹唑啉酮的靶向生物催化生成,喹诺酮或喹唑啉酮是两种具有特殊生物医学相关性的生物碱框架。
先前的研究表明,Fe II /α-酮戊二酸依赖性双加氧酶AsqJ诱导构巢曲霉在viridicatin生物合成中的骨架重排,从苯并[1,4]二氮杂-2,5-二酮底物生成喹诺酮骨架。我们报告说,仅通过改变苯并二氮杂二酮底物中的取代基,AsqJ即可催化另外的,完全不同的反应。通过底物筛选,功能探针的应用和计算分析来建立这种新机制。AsqJ消费税H 2由合适的苯并[1,4]二氮杂-2-5,5-二酮底物的杂环结构生成CO,生成喹唑啉酮。这种新颖的AsqJ催化途径由复杂底物中的单个取代基控制。AsqJ的这种独特的底物定向反应性可实现喹诺酮或喹唑啉酮的靶向生物催化生成,喹诺酮或喹唑啉酮是两种具有特殊生物医学相关性的生物碱框架。
[EN] BENZIMIDAZOLE DERIVATIVES AS BROMODOMAIN INHIBITORS<br/>[FR] DÉRIVÉS DE BENZIMIDAZOLE COMME INHIBITEURS DES BROMODOMAINES
申请人:GLAXOSMITHKLINE IP DEV LTD
公开号:WO2016146738A1
公开(公告)日:2016-09-22
Compounds of formula (I) and salts thereof: wherein R1, R2, R3, R4 are defined herein. Compounds of formula (I) and salts thereof have been found to inhibit the binding of the BET family of bromodomain proteins to, for example, acetylated lysine residues and thus may have use in therapy, for example in the treatment of autoimmune and inflammatory diseases, such as rheumatoid arthritis; and cancers.
[EN] COMPOSITIONS AND METHODS FOR THE TREATMENT OF BACTERIAL INFECTIONS<br/>[FR] COMPOSÉS ET MÉTHODES POUR LE TRAITEMENT D'INFECTIONS BACTÉRIENNES
申请人:CIDARA THERAPEUTICS INC
公开号:WO2018006063A1
公开(公告)日:2018-01-04
Compositions and methods for the treatment of bacterial infections include compounds containing dimers of cyclic heptapeptides conjugated to one or more monosaccharide or oligosaccharide moieties. In particular, compounds can be used in the treatment of bacterial infections caused by Gram-negative bacteria.
Structural and mechanistic insights into the inhibition of amyloid-β aggregation by Aβ39-42 fragment derived synthetic peptides
作者:Akshay Kapadia、Krishna K. Sharma、Indresh Kumar Maurya、Varinder Singh、Madhu Khullar、Rahul Jain
DOI:10.1016/j.ejmech.2020.113126
日期:2021.2
permeability and offered proteolytic stability to the syntheticpeptides. Several peptides exhibited promising protection against Aβ aggregation-mediated-neurotoxicity in PC-12 cells at doses ranged between 10 μM and 0.1 μM, further confirmed by the thioflavin-T fluorescence assay. CD study illustrate that these peptides restrict the β-sheet formation, and the non-appearance of Aβ42 fibrillar structures in
Synthesis and antibacterial studies of teixobactin analogues with non-isostere substitution of enduracididine
作者:Kang Jin、Kathy Hiu Laam Po、Wang Yeuk Kong、Chung Hei Lo、Chun Wah Lo、Ho Yin Lam、Amaya Sirinimal、Jonathan Avraham Reuven、Sheng Chen、Xuechen Li
DOI:10.1016/j.bmc.2018.01.016
日期:2018.3
l-allo-enduracididine (End) residue which is not readily accessible. In this report, we have used convergent Ser Ligation as the key step to prepare a series of teixobactin analogues with End being substituted with its non-isostere moieties. Among these analogues, compounds T16, T27 and T29 exhibited the best antimicrobial activities against different Gram-positive bacteria with MICs ranging from 0.25
Selection of DNA‐Encoded Dynamic Chemical Libraries for Direct Inhibitor Discovery
作者:Yuqing Deng、Jianzhao Peng、Feng Xiong、Yinan Song、Yu Zhou、Jianfu Zhang、Fong Sang Lam、Chao Xie、Wenyin Shen、Yiran Huang、Ling Meng、Xiaoyu Li
DOI:10.1002/anie.202005070
日期:2020.8.24
that can identify full ligand structures from large‐scale DEDLs. This method is also able to convert unbiased libraries into focused ones targeting specific protein classes. We demonstrated this method by selecting DEDLs against five proteins, and novel inhibitors were identified for all targets. Notably, several selective BD1/BD2 inhibitors were identified from the selections against bromodomain 4 (BRD4)