Mechanism of hydrolysis of phosphorylethanolamine diesters. Intramolecular nucleophilic amine participation
作者:Robert A. Lazarus、Patricia A. Benkovic、Stephen J. Benkovic
DOI:10.1039/p29800000373
日期:——
Intramolecular displacement reactions at phosphorus have been examined in a series of N-alkyl-O-arylphosphorylethanolamines in water at 35 °C. The examination of the pH–rate profiles and the direct observation by 31P n.m.r. of the reaction products implicate a nucleophilic role for the amine. A rate enhancement of 106–107 is observed. Structure–reactivity correlations derived by changing the pKa of
在35°C的水中,已在一系列N-烷基-O-芳基磷酰基乙醇胺中检测了磷下的分子内置换反应。pH速率曲线的检查以及31 P nmr对反应产物的直接观察表明该胺具有亲核作用。观察到速率提高了10 6 –10 7。通过改变P由来结构反应性的相关性ķ一个的胺和离去基团屈服值β NUC ≃0.7和β 1克1.25–1.25并支持非耦合的协调机制。讨论了涉及胺和氧阴离子与分子间和分子内磷酸二酯和三酯的亲核反应机理。
[EN] PYRIMIDO[5,4-d]PYRIMIDINE DERIVATIVES AS ENT INHIBITORS FOR THE TREATMENT OF CANCERS, AND COMBINATION THEREOF WITH ADENOSINE RECEPTOR ANTAGONISTS<br/>[FR] DÉRIVÉS DE PYRIMIDO[5,4-D]PYRIMIDINE SERVANT D'INHIBITEURS D'ENT POUR LE TRAITEMENT DE CANCERS, ET LEUR COMBINAISON AVEC DES ANTAGONISTES DU RÉCEPTEUR DE L'ADÉNOSINE
申请人:ITEOS BELGIUM SA
公开号:WO2021170797A1
公开(公告)日:2021-09-02
The present invention relates to pyrimido[5,4-d]pyrimidine derivatives of formula (I), including pharmaceutically acceptable salts and solvates thereof. Compounds of the invention are inhibitors of ENT family transporter, especially of ENT1, and are useful as therapeutic compounds for the treatment of cancers. The invention also relates to the combined use of the pyrimido[5,4-d]pyrimidine derivatives with an adenosine receptor antagonist, for the treatment of cancers.
[EN] QUINAZOLINE COMPOUNDS<br/>[FR] COMPOSES DE QUINAZOLINE
申请人:ASTRAZENECA AB
公开号:WO2004058752A1
公开(公告)日:2004-07-15
Quinazoline derivatives of formula (I) wherein A is 5-membered heteroaryl containing a sulphur atom and optionally containing one or more nitrogen atoms; compositions containing them, processes for their preparation and their use in therapy.
[EN] PHOSPHONOOXY QUINAZOLINE DERIVATIVES AND THEIR PHARMACEUTICAL USE<br/>[FR] DERIVES DE PHOSPHONOOXY QUINAZOLINE ET LEUR UTILISATION PHARMACEUTIQUE
申请人:ASTRAZENECA AB
公开号:WO2004058781A1
公开(公告)日:2004-07-15
Quinazoline derivatives of formula (I) wherein A is 5-membered heteroaryl containing a nitrogen atom and one or two further nitrogen atoms; compositions containing them, processes for their preparation and their use in therapy.
[EN] CHEMICAL COMPOUNDS<br/>[FR] DERIVES DE QUINAZOLINE POUR LE TRAITEMENT DU CANCER
申请人:ASTRAZENECA AB
公开号:WO2004094410A1
公开(公告)日:2004-11-04
Quinazoline derivatives of formula (I); for use in the treatment of proliferative diseases such as cancer and in the preparation of medicaments for use in the treatment of proliferative diseases, and to processes for their preparation, as well as pharmaceutical compositions containing them as active ingredient.