Design, Synthesis, and Anti-Thrombotic Evaluation of Some Novel Fluorinated Thrombin Inhibitor Derivatives
作者:Haifeng Chen、Yujie Ren
DOI:10.1002/ardp.201400460
日期:2015.6
used to design and synthesize nine novelfluorinatedthrombininhibitorderivatives. These compounds were confirmed by spectral analyses (1H NMR, 13C NMR, and FT‐ICR‐MS). Their inhibitory activities against thrombin enzyme were evaluated by chromogenic assay. All the derivatives demonstrated thrombin inhibitory activity in vitro. Five of these compounds exerted more potent effects against thrombin enzyme
Design, synthesis, biological evaluation and molecular docking of novel substituted 1-ethyl-1H-benzimidazole fluorinated derivatives as thrombin inhibitors
作者:Fei Wang、Yu-Jie Ren
DOI:10.1007/s13738-016-0830-1
日期:2016.6
Six novel substituted 1-ethyl-1H-benzimidazole fluorinatedderivatives were designed and synthesised based on computer-aided simulation. The structures of the target compounds were characterised by 1H NMR, 13C NMR, 19F NMR and FT-ICR-MS. The preliminary screening inhibition rate data of synthesised compounds were more than 80 %. Compounds 12a and 12f were evaluated for their anti-thrombin activity
在计算机辅助模拟的基础上,设计合成了六种新型的取代的1-乙基-1 H-苯并咪唑氟化衍生物。目标化合物的结构通过1 H NMR,13 C NMR,19 F NMR和FT-ICR-MS进行表征。合成化合物的初步筛选抑制率数据超过80%。评价化合物12a和12f的体外抗凝血酶活性(IC 50)。测试数据表明,该化合物显示出比参考药物阿加曲班更好的凝血酶抑制活性(9.88±2.26 nM)。尤其是,化合物12f是IC 50最强的衍生物 浓度为3.21±0.57 nM,可作为进一步研究凝血酶抑制剂的候选化合物。
Synthesis and Biological Evaluation of Some New 2,5-Substituted 1-Ethyl-1<i>H</i>-benzoimidazole Fluorinated Derivatives as Direct Thrombin Inhibitors
作者:Meilin Li、Yujie Ren
DOI:10.1002/ardp.201400463
日期:2015.5
relationships as direct thrombininhibitors. All the compounds were effective thrombininhibitors, with IC50 values ranging from 3.39 to 23.30 nM. Among the compounds synthesized, compounds 14a, 14b, 14d, 14e, and 14h exhibited greater anticoagulant activity than argatroban (IC50 = 9.36 nM). Furthermore, compound 14h synthesized starting with 2‐amino‐pyridine was the most potent thrombininhibitor with an IC50
Synthesis and biological evaluation of novel dabigatran derivatives as thrombin inhibitors
作者:Chun Lei Li、Yu Jie Ren
DOI:10.1007/s11164-015-2053-y
日期:2016.2
A novel series of 3-[2-[(4-carbamimidoylphenylamino)methyl]-1-substituted-1H-benzoimidazole-5-carbonyl}(3-chloro-4-fluorophenyl)amino]propionic derivatives of dabigatran was synthesized. The structures of the compounds were characterized by 1H NMR, 13C NMR, HRMS, and elemental analysis. The compounds were screened for in vitro thrombin inhibitory activity. The results indicated that the compounds had low to moderate inhibitory activity. The compounds with N-methyl and N-ethyl side chains had much greater inhibitory activity against thrombin than those with other side chains.
[EN] A METHOD FOR THE PREPARATION OF DABIGATRAN<br/>[FR] PROCÉDÉ DE PRÉPARATION DE DABIGATRAN
申请人:ZENTIVA KS
公开号:WO2009111997A1
公开(公告)日:2009-09-17
A method for the manufacture of dabigatran of formula VIII, in which the product of a reaction of 4-ethylamino-3-nitrobenzoic acid chloride with ethyl-3-(pyridin-2- ylamino)propanoate, is converted to the hydrochloride using a hydrogen chloride solution producing the compound of formula III-HC1, in which the nitro group is reduced by means of a reaction with sodium dithionite, and the resulting compound of formula IV is subjected to a reaction with [(4-cyanophenyl)amino] acetic acid and oxalic acid, the product of this reaction Vl-oxal is then subjected to hydrolysis and a reaction with ammonium carbonate to produce the intermediate of formula VII-HCl, which is then converted to dabigatran by means of a reaction with hexyl chloroformate.