病毒DNA整合到细胞基因组中是1型人类免疫缺陷病毒(HIV-1)复制周期中的关键步骤之一。因此,催化该过程的病毒酶整合酶(IN)作为新型抗病毒剂的靶标引起了极大的兴趣。我们对五个不同系列的亚甲基双膦酸酯(BPs),PO 3 H 2 –C(R)(X)–PO 3 H 2进行了结构-功能分析。,作为IN抑制剂,旨在评估抑制活性所需的结构元素。我们发现IN仅受BP在P–C–P主链的桥碳上带有一个氯苄基取代基R的抑制。这些BP以相似的效率抑制了两种IN催化的反应。它们还对某些具有突变的IN起作用,这些突变具有针对抗链转移抑制剂的HIV-1菌株的特征性突变。对各种BP抑制IN的机理的研究表明,它受桥碳上第二个取代基(X)的影响。在测试的化合物中,只有氨基直接结合到BP桥碳上的BP被认为是非竞争性抑制剂,因此,作为整合前复合物中IN活性的潜在抑制剂,它有可能被进一步研究。
inhibitors of the phosphorolytic activity of native and drug-resistant forms of HIV-1 reverse transcriptase (RT) was performed. It was shown that with the increase of the inhibitory potential of BPs towards the phosphorolytic activity raises their ability to inhibit the RT-catalyzed DNA elongation. Herein, we report the impact of the thymidine analog mutations (TAM) on the activity of bisphosphonates, as well
Diphosphonsäure-Derivate und diese enthaltende pharmazeutische Präparate
申请人:SCHERING AKTIENGESELLSCHAFT
公开号:EP0085321A2
公开(公告)日:1983-08-10
Diphosphonsäure-Derivate der allgemeinen Formel I
worin
n die Ziffern 0, 1 oder 2 bedeuten und worin
R, ein Wasserstoffatom oder eine 1 bis 4 Kohlenstoffatome enthaltende Alkylgruppe
R2 ein Wasserstoffatom, ein Alkalimetallatom, ein Erdalkalimetallatom oder eine 1 bis 4 Kohlenstoffatome enthaltende Alkylgruppe und Ar einen gegebenenfalls durch Fluoratome, Chloratome, 1 bis 4 Kohlenstoffatome enthaltende Alkylgruppen oder 1 bis 4 Kohlenstoffatome enthaltende Alkoxygruppen substituierten Phenylrest, einen Naphthylrest, einen Biphenylrest oder einen Thienylrest darstellen, sind pharmakologisch wirksame Substanzen.
通式 I 的二膦酸衍生物
其中
n 是数字 0、1 或 2,其中
R 是氢原子或含有 1 至 4 个碳原子的烷基
R2 代表氢原子、碱金属原子、碱土金属原子或含 1 至 4 个碳原子的烷基,Ar 代表可选被氟原子、氯原子、含 1 至 4 个碳原子的烷基或含 1 至 4 个碳原子的烷氧基、萘基、联苯基或噻吩基取代的苯基。
Synthesis and Evaluation of Effective Inhibitors of Plant δ<sup>1</sup>-Pyrroline-5-carboxylate Reductase
Analogues of previously studied phenyl-substituted aminomethylene-bisphosphonic acids were synthesized and evaluated as inhibitors of Arabidopsis thaliana delta(1)-pyrroline-5-carboxylate reductase. With the aim of improving their effectiveness, two main modifications were introduced into the inhibitory scaffold: the aminomethylenebisphosphonic moiety was replaced with a hydroxymethylenebisphosphonic group, and the length of the molecule was increased by replacing the methylene linker with an ethylidene chain. In addition, chlorine atoms in the phenyl ring were replaced with various other substituents. Most of the studied derivatives showed activity in the rnicromolar to millimolar range, with two of them being more effective than the lead compound, with concentrations inhibiting 50% of enzyme activity as low as 50 mu M. Experimental evidence supporting the ability of these inhibitors to interfere with proline synthesis in vivo is also shown.