Synthesis and biological evaluation of thio-benzodiazepines as novel small molecule inhibitors of the p53–MDM2 protein–protein interaction
摘要:
A series of thio-benzodiazepine p53-MDM2 inhibitors were designed and synthesized based on the principle of bioisosterism. Most of the thio-benzodiazepines had nanomolar to micromolar affinity toward MDM2. Particularly, compounds 8a (K-i = 0.52 mu M) and 8f (K-i = 0.32 mu M) showed binding activity comparable to the positive drug nutlin-3a (K-i = 0.23 mu M). Meanwhile, compound 8j exhibited excellent antitumor activity against the U-2 OS human osteosarcoma cell line with an IC50 value of 1.06 mu M, which was about 23 times higher than that of nutlin-3a. The docking model also successfully predicted that this class of compounds mimicked three p53 critical residues binding to MDM2. The thio-benzodiazepines represent a promising class of non-peptide inhibitors of the p53-MDM2 interaction. (C) 2011 Published by Elsevier Masson SAS.
在[Ru(cymene)Cl 2 ] 2(10%)的催化下,苯甘氨酸衍生物(1a-1f)的N-未保护的甲基酯与富含电子的内部炔烃(2a-2e)的反应,得到相应的3,4-双取代的异喹啉-1-羧酸酯3通过C H / N H氧化偶合。C H键活化步骤由羧酸盐协助,并且三氟甲磺酸N-氟-2,4,6-三甲基吡啶鎓用作末端氧化剂。该方法显示出对氨基酸的苯环上存在各种释放电子和吸引电子的官能团的显着耐受性。此外,苯甘氨酸衍生物(1a–1f的反应在相同的实验条件下,用[Ru(cymene)Cl 2 ] 2(10%)催化的丙烯酸甲酯(4a),通过C H / N H偶合得到相应的3,N-二取代的异吲哚啉-1-羧酸酯5。以非对映异构体的混合物形式获得异二氢吲哚5,具有中等至高的非对映异构体过量值(最高80%)。
Formation of Non-Natural α,α-Disubstituted Amino Esters via Catalytic Michael Addition
作者:Kip A. Teegardin、Lacey Gotcher、Jimmie D. Weaver
DOI:10.1021/acs.orglett.8b03161
日期:2018.11.16
of amino esters is explored, and the first catalytic Michaeladdition of α-amino esters is demonstrated. These studies indicate that the acidity of the αC–H is the primary factor determining reactivity. Thus, polyfluorophenylglycine amino esters yield novel α-amino esters in the presence of a catalytic amount of a guanidine-derived base and Michael acceptors. Reactivity requires an acidic N–H, which
A new strategy, a transient homocoupling dimer strategy, for direct catalytic oxidative cross-enolate coupling reactions is developed. Cross-enolate coupling products bearing a (contiguous) tetrasubstituted carbon center were obtained chemoselectively without the need for stoichiometric amounts of strong bases/metal oxidants, and thus, the present catalysis provides a general method for the synthesis
Efficient C2 functionalisation of 2H-2-imidazolines
作者:Robin S. Bon、Nanda E. Sprenkels、Manoe M. Koningstein、Rob F. Schmitz、Frans J. J. de Kanter、Alexander Dömling、Marinus B. Groen、Romano V. A. Orru
DOI:10.1039/b713065a
日期:——
Alkylation and oxidation of 2H-2-imidazolines, followed by regioselective deprotection, thionation and microwave-assisted Liebeskind–Srogl reaction, efficiently led to 2-aryl-2-imidazolines as new analogues of p53-hdm2 interaction inhibitors (Nutlins).
Bicycloheteroaryl compounds as P2X7 modulators and uses thereof
申请人:Kelly G. Michael
公开号:US20070225324A1
公开(公告)日:2007-09-27
Bicycloheteroaryl compounds are disclosed that have a formula represented by the following:
The compounds may be prepared as pharmaceutical compositions, and may be used for the prevention and treatment of a variety of conditions in mammals including humans, including by way of non-limiting example, pain, inflammation, traumatic injury, and others.
The invention relates to a compound of formula (I)
wherein A, R
1
-R
6
are as defined in the description and in the claims. The compound of formula (I) can be used as a medicament.