Deconstruction of a Nutlin: Dissecting the Binding Determinants of a Potent Protein–Protein Interaction Inhibitor
摘要:
Protein-protein interaction (PPI) systems represent a rich potential source of targets for drug discovery, but historically have proven to be difficult, particularly in the lead. identification stage. Application of the fragment-based approach may help toward success with this target class. To provide an example toward understanding the potential issues associated with such an application, we have deconstructed one of the best established protein-protein inhibitors, the Nutlin series that inhibits the interaction between MDM2 and p53, into fragments, and surveyed the resulting binding properties using heteronuclear single quantum coherence nuclear magnetic resonance (HSQC NMR), surface plasmon resonance (SPR), and X-ray crystallography. We report the relative contributions toward binding affinity for each key substituents of the Nutlin molecule and show that this series could hypothetically have been discovered via fragment approach. We find that the smallest fragment of Nutlin that retains binding accesses two subpockets of MDM2 and has a molecular weight at the high end of the range that normally defines fragments.
Iodine(III)-Promoted Intermolecular Diamination of Alkenes
作者:José A. Souto、Yolanda González、Alvaro Iglesias、Debora Zian、Anton Lishchynskyi、Kilian Muñiz
DOI:10.1002/asia.201101025
日期:2012.5
A rapid and productive vicinal diamination of alkenes takes place in the presence of a hypervalent iodine(III) reagent and bissulfonimides as nitrogen sources. A total of more than 60 examples are presented. The reaction is characterized by its robustness and its wide substrate scope: it proceeds selectively with both terminal and internal alkenes and tolerates a range of functional groups.
A process known per se for the manufacture of oxygenated N-aryl-diazacyclic compounds of the formula ##STR1## wherein EACH OF R.sub.1 and R.sub.2 represents a substituted or unsubstituted aryl group and alk represents a lower alkylene group which separates both nitrogen atoms from each other by 2 or 3 carbon atoms, or salts thereof. The novel compounds can be used as antihypertensives, antitachycardiac agents and .alpha.-receptor blockers.
The present invention provides a compound of formula I;
a method for manufacturing the compounds of the invention, and its therapeutic uses. The present invention further provides a combination of pharmacologically active agents and a pharmaceutical composition.
[EN] CIS-IMIDAZOLINES AS MDM2 INHIBITORS<br/>[FR] CIS-IMIDAZOLINES INHIBITEURS DE MDM2
申请人:HOFFMANN LA ROCHE
公开号:WO2003051360A1
公开(公告)日:2003-06-26
The present invention provides compounds according to formula I and formula II and pharmaceutically acceptable salts and esters thereof, having the designations provided herein and which inhibit the interaction of MDM2 protein with a p53-like peptide and have antiproliferative activity (I) (II).
A process known per se for the manufacture of oxygenated N-aryl-diazacyclic compounds of the formula ##STR1## wherein each of R.sub.1 and R.sub.2 represents a substituted or unsubstituted aryl group and alk represents a lower alkylene group which separates both nitrogen atoms from each other by 2 or 3 carbon atoms, or salts thereof. The novel compounds can be used as antihypertensives, antitachycardiac agents and .alpha.-receptor blockers.