Aryl Phosphoramidate Derivatives of d4T Have Improved Anti-HIV Efficacy in Tissue Culture and May Act by the Generation of a Novel Intracellular Metabolite
摘要:
New phosphate derivatives of the anti-HIV nucleoside analogue d4T were prepared as potential membrane-soluble prodrugs of the bioactive free nucleotide. The enhanced antiviral potency and/or reduced cytotoxicity of the derivatives leads to an increase in selectivity relative to the parent nucleoside analogue. Moreover, the derivatives appear to bypass the dependence of the nucleoside on thymidine kinase-mediated activation, retaining full activity in thymidine kinase-deficient cells. This strongly suggests the successful intracellular delivery of free nucleotides by the masked phosphate triester prodrugs. This is further confirmed by studies using radiolabeled compound which clearly demonstrate the generation of d4T mono-, di- and triphosphates from the prodrug, even in thymidine kinase-deficient cells. Moreover, we herein report the generation of a new metabolite, a partially hydrolyzed phosphate diester, alaninyl d4T monophosphate. We suggest that at least part of the antiviral action of the prodrugs derives from the intracellular generation of such novel diesters which may add considerable weight to the suggested further preclinical development of the phosphate prodrugs.
Discovery of a β-<scp>d</scp>-2′-Deoxy-2′-α-fluoro-2′-β-<i>C</i>-methyluridine Nucleotide Prodrug (PSI-7977) for the Treatment of Hepatitis C Virus
作者:Michael J. Sofia、Donghui Bao、Wonsuk Chang、Jinfa Du、Dhanapalan Nagarathnam、Suguna Rachakonda、P. Ganapati Reddy、Bruce S. Ross、Peiyuan Wang、Hai-Ren Zhang、Shalini Bansal、Christine Espiritu、Meg Keilman、Angela M. Lam、Holly M. Micolochick Steuer、Congrong Niu、Michael J. Otto、Phillip A. Furman
DOI:10.1021/jm100863x
日期:2010.10.14
HepatitisCvirus (HCV) is a global health problem requiring novel approaches for effective treatment of this disease. The HCV NS5Bpolymerase has been demonstrated to be a viable target for the development of HCV therapies. β-d-2′-Deoxy-2′-α-fluoro-2′-β-C-methyl nucleosides are selective inhibitors of the HCV NS5Bpolymerase and have demonstrated potent activity in the clinic. Phosphoramidate prodrugs
丙型肝炎病毒 (HCV) 是一个全球性的健康问题,需要新的方法来有效治疗这种疾病。HCV NS5B 聚合酶已被证明是开发 HCV 疗法的可行靶标。β- d -2'-Deoxy-2'-α-fluoro-2'-β- C-甲基核苷是 HCV NS5B 聚合酶的选择性抑制剂,并已在临床上显示出有效的活性。制备了 β- d -2'-deoxy-2'-α-fluoro-2'-β- C-甲基尿苷核苷的 5'-磷酸衍生物的氨基磷酸酯前药,并在 HCV 亚基因组复制子测定中显示出显着的效力(< 1 μM)并产生高水平的三磷酸盐6当体内给药时,在原代肝细胞和大鼠、狗和猴子的肝脏中。使非对映体混合物14的单一非对映体51结晶,确定X射线结构,将氨基磷酸酯立体化学建立为S p ,从而首次将氨基磷酸酯前药的立体化学与生物活性相关联。51(PSI-7977)被选为临床开发候选者。
[EN] SALTS OF DIPHOSPHATE PHOSPHORAMIDATE OF NUCLEOSIDES AS ANTICANCER COMPOUNDS<br/>[FR] SELS DE PHOSPHORAMIDATE DIPHOSPHATE DE NUCLÉOSIDES UTILISÉS EN TANT QUE COMPOSÉS ANTICANCÉREUX
申请人:NUCANA PLC
公开号:WO2019110991A1
公开(公告)日:2019-06-13
The present invention relates to compounds comprising a salt of a diphosphate phosphoramidate of a nucleoside drug, e.g. clofarabine. The compounds are useful in the treatment of cancer, e.g. leukemia.
[EN] PHOSPHORODIAMIDATES AND OTHER PHOSPHORUS DERIVATIVES OF FINGOLIMOD AND RELATED S1 P RECEPTOR MODULATORS<br/>[FR] PHOSPHORODIAMIDATES ET AUTRES DÉRIVÉS DE PHOSPHORE DE FINGOLIMOD ET MODULATEURS DE RÉCEPTEUR S1 P ASSOCIÉS
申请人:UNIV COLLEGE CARDIFF CONSULTANTS LTD
公开号:WO2019064012A1
公开(公告)日:2019-04-04
Compounds of general formula (I): (Formula I)) wherein R1, Q, R3, R4, R5, R6, R7 and Ar1 are as defined herein are inhibitors of class I histone deacetylases and are of use in the treatment of lysosomal storage disorders, especially Niemann-Pick type C disease, as well as other lysosomal storage disorders, defective autophagy, accumulation of free cholesterol and mycobacterial diseases.
[EN] ADENOSINE DERIVATIVES FOR USE IN THE TREATMENT OF CANCER<br/>[FR] DÉRIVÉS DE L'ADÉNOSINE UTILISABLES DANS LE TRAITEMENT DU CANCER
申请人:NUCANA BIOMED LTD
公开号:WO2017207989A1
公开(公告)日:2017-12-07
The present invention relates to chemical compounds of formula (I) as defined in the amended claims, their preparation and their use in the treatment of cancer.
本发明涉及化学式(I)所定义的化合物,其制备以及在癌症治疗中的应用。
Phosphorodiamidates and other phosphorus derivatives of fingolimod and related S1P receptor modulators
申请人:UNIVERSITY COLLEGE CARDIFF CONSULTANTS LTD
公开号:US11078221B2
公开(公告)日:2021-08-03
Compounds of general formula (I): (Formula I)) wherein R1, Q, R3, R4, R5, R6, R7 and Ar1 are as defined herein are inhibitors of class I histone deacetylases and are of use in the treatment of lysosomal storage disorders, especially Niemann-Pick type C disease, as well as other lysosomal storage disorders, defective autophagy, accumulation of free cholesterol and mycobacterial diseases.
通式(I)的化合物:(式 I)) 其中 R1、Q、R3、R4、R5、R6、R7 和 Ar1 如本文所定义,是 I 类组蛋白去乙酰化酶的抑制剂,可用于治疗溶酶体贮积症,尤其是 C 型尼曼-皮克病,以及其他溶酶体贮积症、自噬缺陷、游离胆固醇积累和霉菌病。