[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。
Phosphoramidate ProTides of 2′-<i>C</i>-Methylguanosine as Highly Potent Inhibitors of Hepatitis C Virus. Study of Their in Vitro and in Vivo Properties
recognized as potent and selective inhibitors of HCV in replicon assay but lack rodent plasma stability despite considerable ester variation. Amino acid variation retaining the lead benzyl ester moiety gives an increase in rodent stability but at the cost of potency. Finally l-valine esters with ester variation lead to potent, stable compounds. Pharmacokinetic studies on these agents in the mouse reveal
Phosphoramidate ProTides of the Anticancer Agent FUDR Successfully Deliver the Preformed Bioactive Monophosphate in Cells and Confer Advantage over the Parent Nucleoside
The fluorinated pyrimidine family of nucleosides continues to represent major current chemotherapeutic agents for treating solid tumors. We herein report their phosphate prodrugs, ProTides, as promising new derivatives, which partially bypass the dependence of the current drugs on active transport and nucleoside kinase-mediated activation. They are also resistant to metabolic deactivation by phosphorolytic enzymes. We report 39 ProTides of the fluorinated pyrimidine FUDR with variation in the aryl, ester, and amino acid. regions. Notably, only certain ProTide motifs are successful in delivering the nucleoside monophosphate into intact cells. We also find that the ProTides retain activity in mycoplasma infected cells, unlike FUDR. Data suggest these compounds to be worthy of further progression.
[EN] 2'-CHLOROACETYLENYL SUBSTITUTED NUCLEOSIDE DERIVATIVES<br/>[FR] DÉRIVÉS DE NUCLÉOSIDES SUBSTITUÉS PAR UN GROUPE 2'-CHLOROACÉTYLÉNYLE
申请人:ENANTA PHARM INC
公开号:WO2013044030A1
公开(公告)日:2013-03-28
The present invention relates to 2'-chloroacetylenyl-substituted nucleoside derivatives of the general formula (I): As well as pharmaceutical compositions comprising such compounds and methods to treat or prevent an HIV infection, HBV infection, HCV infection or abnormal cellular proliferation, comprising administering said compounds or compositions. In addition, the present invention includes processes for the preparation of such compounds, and the related β-D and β-L-nucleoside derivatives.
Application of ProTide Technology to Gemcitabine: A Successful Approach to Overcome the Key Cancer Resistance Mechanisms Leads to a New Agent (NUC-1031) in Clinical Development
nucleoside analogue commonly used in cancer therapy but with limited efficacy due to a high susceptibility to cancercell resistance. The addition of a phosphoramidate motif to the gemcitabine can protect it against many of the key cancer resistance mechanisms. We have synthesized a series of gemcitabine phosphoramidate prodrugs and screened for cytostatic activity in a range of different tumor cell lines