Structure–Activity Relationships and Pharmacophore Model of a Noncompetitive Pyrazoline Containing Class of GluN2C/GluN2D Selective Antagonists
摘要:
Here we describe the synthesis and structure-activity relationship for a class of pyrazoline-containing dihydroquinolone negative allosteric modulators of the NMDA receptor that show strong subunit selectivity for GluN2C- and GluN2D-containing receptors over GluN2A- and GluN2B-containing receptors. Several members of this class inhibit NMDA receptor responses in the nanomolar range and are more than 50-fold selective over GluN1/GluN2A and GluN1/GluN2B NMDA receptors, as well as AMPA, kainate, GABA, glycine, nicotinic, serotonin, and purinergic receptors. Analysis of the purified enantiomers of one of the more potent and selective compounds shows that the S-enantiomer is both more potent and more selective than the R-enantiomer. The S-enantiomer had an IC50 of 0.17-0.22 mu M at GluN2D- and GluN2C-containing receptors, respectively, and showed over 70-fold selectivity over other NMDA receptor subunits. The subunit selectivity of this class of compounds should be useful in defining the role of GluN2C- and GluN2D-containing receptors in specific brain circuits in both physiological and pathophysiological conditions.
二苯并[ b , f ][1,5]二氮杂辛是一类八元杂环化合物,具有独特的刚性鞍状结构并具有固有的手性。在这项研究中,我们报告了一种方便、直接的方法,通过手性磷酸催化 2-酰基苯并异氰酸酯的二聚,催化对映选择性合成这些独特的手性分子。值得注意的是,添加相应的2-酰基苯胺作为助催化剂显着提高了这些反应的效率,并且简单的相分离操作导致产物具有优异的对映体纯度。进行实验研究是为了阐明这些反应背后的机制,并根据研究结果提出合理的反应机制。
Cycloalkyl, lactam, lactone and related compounds, pharmaceutical compositions comprising same, and methods for inhibiting beta-amyloid peptide release and/or its synthesis by use of such compounds
申请人:——
公开号:US20020045747A1
公开(公告)日:2002-04-18
Disclosed are compounds which inhibit &bgr;-amyloid peptide release and/or its synthesis, and, accordingly, have utility in treating Alzheimer's disease. Also disclosed are pharmaceutical compositions comprising a compound which inhibits &bgr;-amyloid peptide release and/or its synthesis as well as methods for treating Alzheimer's disease both prophylactically and therapeutically with such pharmaceutical compositions.
作者:Andrew Whyte、Katherine I. Burton、Jingli Zhang、Mark Lautens
DOI:10.1002/anie.201808460
日期:2018.10.15
An enantioselective copper‐catalyzed intramolecular borylacylation is reported. The reaction proceeds through an initial enantioselective borylcupration of the styrene, followed by a nucleophilic attack on the tethered carbamoyl chloride. The products, chiral borylated 3,3‐disubstituted oxindoles, were generated in excellent yields and enantioselectivities. The versatile carbon–boron bond provides
Synthesis of 1-Amino-2,2,2-trifluoroalkylphosphonates from Alkene-Tethered Trifluoroacetimidoyl Chlorides
作者:José F. Rodríguez、Anji Zhang、Ramon Arora、Mark Lautens
DOI:10.1021/acs.orglett.1c02750
日期:2021.10.1
The reaction of alkene-tethered trifluoroacetimidoylchlorides with trialkylphosphites furnishes 1-amino-2,2,2-trifluoroalkylphosphonates. The products were generated in moderate to good yields, and the scalability of this process was showcased. Partial hydrolysis of the phosphonate moiety was achieved. The cyclization is proposed to occur via formation of an imidoyl phosphonate intermediate that
2-Aminobenzophenones as a Novel Class of Bradykinin B<sub>1</sub>Receptor Antagonists
作者:Dai-Shi Su、John L. Lim、Elizabeth Tinney、Bang-Lin Wan、Kathy L. Murphy、Duane R. Reiss、C. Meacham Harrell、Stacy S. O’Malley、Rick W. Ransom、Raymond S. L. Chang、Douglas J. Pettibone、Jian Yu、Cuyue Tang、Thomayant Prueksaritanont、Roger M. Freidinger、Mark G. Bock、Neville J. Anthony
DOI:10.1021/jm800199h
日期:2008.7
Selective bradykinin (BK) B 1 receptorantagonists could be novel therapeuticagents for the treatment of pain and inflammation. Elucidation of the structure activity relationships of the structurally novel HTS lead compound 1 provided potent hBK B 1 receptorantagonists with excellent receptor occupancy in the CNS of hBK B 1 transgenic rats.
选择性缓激肽(BK)B 1受体拮抗剂可能是治疗疼痛和炎症的新型治疗剂。对结构新颖的HTS前导化合物1的结构活性关系的阐明提供了有效的hBK B 1受体拮抗剂,在hBK B 1转基因大鼠的中枢神经系统中具有出色的受体占有率。
Enantioselective Copper-Catalyzed Borylative Cyclization with Cyclic Imides
enantioselective borylative cyclization cascade utilizing cyclicimides has been developed. We employ a highly enantioselective borylcupration process that includes a 1,2-addition to a cyclicimide. The products contain a valuable hemiaminal and boronate handle for further elaborations within a congested framework. This work demonstrates the utility of cyclicimides as simple precursors to unlock access to sought-after