结核分枝杆菌(Mtb)是一种致病菌,也是结核病(TB)的病原体,该病每年在全球造成150万人死亡。如此高的死亡率的主要原因之一是对新抗生素产生抗药性的新Mtb菌株的进化。因此,对结核病的新疗法有持续的需求。在这里,我们报道了针对两种Mtb DNA复制酶的小分子抑制剂的开发,即DnaG引发酶和DNA促旋酶(Gyr),它们在抑制剂的结合位点附近具有保守的TOPRIM折叠。该分子是根据先前报道的结合在TOPRIM折叠附近的T7 DNA primase抑制剂开发的。为了改善分子的物理化学性质以及它们对primase和gyrase的抑制作用,已在三个优化阶段合成了49种新型化合物作为潜在的候选药物。化学优化的最后阶段产生了两种新型的Mtb DnaG和Gyr抑制剂,它们对快速增长的非致病性模型耻垢分枝杆菌(Msmg)也表现出抑制活性。
结核分枝杆菌(Mtb)是一种致病菌,也是结核病(TB)的病原体,该病每年在全球造成150万人死亡。如此高的死亡率的主要原因之一是对新抗生素产生抗药性的新Mtb菌株的进化。因此,对结核病的新疗法有持续的需求。在这里,我们报道了针对两种Mtb DNA复制酶的小分子抑制剂的开发,即DnaG引发酶和DNA促旋酶(Gyr),它们在抑制剂的结合位点附近具有保守的TOPRIM折叠。该分子是根据先前报道的结合在TOPRIM折叠附近的T7 DNA primase抑制剂开发的。为了改善分子的物理化学性质以及它们对primase和gyrase的抑制作用,已在三个优化阶段合成了49种新型化合物作为潜在的候选药物。化学优化的最后阶段产生了两种新型的Mtb DnaG和Gyr抑制剂,它们对快速增长的非致病性模型耻垢分枝杆菌(Msmg)也表现出抑制活性。
A series of novel indole derivatives was designed and synthesized as inhibitors of fructose-1,6-bisphosphatase (FBPase). The most potent compound 14c was identified with an IC50 value of 0.10 mu M by testing the inhibitory activity against recombinant human FBPase. The structure-activity relationships were investigated on the substitution at 4- and 5-position of the indole scaffold. The binding interactions of the title compounds at AMP binding site of FBPase were predicted using CDOCKER algorithm. (C) 2014 Elsevier Masson SAS. All rights reserved.
Design and synthesis of novel inhibitors of human kynurenine aminotransferase-I
作者:Fady N. Akladios、Naveed A. Nadvi、Joohong Park、Jane R. Hanrahan、Vimal Kapoor、Mark D. Gorrell、W. Bret Church
DOI:10.1016/j.bmcl.2011.12.138
日期:2012.2
Herein we report 6-ethoxy-6-oxo-5-(2-phenylhydrazono) hexanoic acid and 3-(2-carboxyethyl)-1H-indole- 2-carboxylic acid derivatives as synthetically accessible leads for human kynurenine aminotransferase-I (KAT-I) inhibitors. In total, 12 compounds were synthesized and their biological activities were determined using the HPLC-UV based KAT-I inhibition assay. Of the 12 compounds synthesized, 10 were found to inhibit human KAT-I and the most active compound was found to be 5-(2-(4-chlorophenyl) hydrazono)-6-ethoxy-6-oxohexanoic acid (9a) with an IC50 of 19.8 mu M. (C) 2012 Elsevier Ltd. All rights reserved.
Kalb et al., Chemische Berichte, 1926, vol. 59, p. 1864