Phosphoramidate protides of five flavones and their antiproliferative activity against HepG2 and L-O2 cell lines
摘要:
A series of flavone-7-phosphoramidate derivatives were synthesized and tested for their antiproliferative activity in vitro against human hepatoma cell line HepG2 and human normal hepatic cell line L-O2. Compound 8d, 16d and 17d, incorporating the amino acid alanine, exhibited high inhibitory activity on HepG2 cell line with IC50 values of 9.0 mu mol/L, 5.5 mu mol/L and 6.6 mu mol/L. The introduction of acyl groups played a pivotal role in the selective inhibition toward human hepatoma HepG2 cells, except for compound 8a, 9a and 16b. Compound 8d, 16d and 17d could significantly induce G2/M arrest in HepG2 cells. Specially, Compound 16d could lead early apoptosis in HepG2 cells. (C) 2016 Elsevier Masson SAS. All rights reserved.
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。
NUCLEOSIDE PHOSPHORAMIDATE PRODRUGS
申请人:SOFIA MICHAEL JOSEPH
公开号:US20100016251A1
公开(公告)日:2010-01-21
Disclosed herein are phosphoramidate prodrugs of nucleoside derivatives for the treatment of viral infections in mammals, which is a compound, its stereoisomer, salt (acid or basic addition salt), hydrate, solvate, or crystalline form thereof, represented by the following structure:
Also disclosed are methods of treatment, uses, and processes for preparing each of which utilize the compound represented by formula I.
Design and synthesis of vidarabine prodrugs as antiviral agents
作者:Wei Shen、Jae-Seung Kim、Phillip E. Kish、Jie Zhang、Stefanie Mitchell、Brian G. Gentry、Julie M. Breitenbach、John C. Drach、John Hilfinger
DOI:10.1016/j.bmcl.2008.12.031
日期:2009.2
5′-O-d- and l-aminoacidderivatives and 5′-O-(d- and l-aminoacid methyl ester phosphoramidate) derivatives of vidarabine (ara-A) were synthesized as vidarabine prodrugs. Some compounds were equi- or more potent in vitro than vidarabine against two pox viruses and their uptake by cultured cells was improved compared to the parent drug.
合成了阿糖腺苷 (ara-A) 的5'- O - d - 和l - 氨基酸衍生物以及 5'- O -(d - 和l - 氨基酸甲酯氨基磷酸酯)衍生物作为阿糖腺苷前药。一些化合物在体外对抗两种痘病毒的效力与阿糖腺苷相当或更强,并且与母体药物相比,它们被培养细胞的吸收得到改善。
We report in this Letter the synthesis of prodrugs of 2-fluoro-2-deoxyarabinose-1-phosphate and 2,2-difluoro-2-deoxyribose-1-phosphate. We demonstrate the difficulty of realising a phosphorylation step on the anomeric position of 2-deoxyribose, and we discover that introduction of fluorine atoms on the 2 position of 2-deoxyribose enables the phosphorylation step: in fact, the stability of the prodrugs increases with the degree of 2-fluorination. Stability studies of produgs of 2-fluoro-2-deoxyribose-1-phosphate and 2,2-difluoro-2-deoxyribose-1-phosphate in acidic and neutral conditions were conducted to confirm our observation. Biological evaluation of prodrugs of 2,2-difluoro-2-deoxyribose-1-phosphate for antiviral and cytotoxic activity is reported. (C) 2013 Published by Elsevier Ltd.