Isomeric tropane analogues of histamine H<sub>2</sub>-receptor antagonists
作者:Jerome R. Bagley、Thomas N. Riley
DOI:10.1002/jhet.5570190307
日期:1982.5
In an attempt to investigate stereochemical requirements of antagonists of the histamineH2-receptor, tropane analogues of cimetidine and metiamide have been synthesized possessing axial and equatorial N-methylthiourea and N-methyl-N-cyanoguanidine moieties at the 3-position of the tropane system. The tropane analogues of this study have been fully characterized with regard to configuration at C-3
Development of a Bulk Enabling Route to Maraviroc (UK-427,857), a CCR-5 Receptor Antagonist
作者:Sarah J. Haycock-Lewandowski、Alexander Wilder、Jens Åhman
DOI:10.1021/op8000614
日期:2008.11.21
A bulk enabling synthesis of the CCR-5 receptor antagonist, Maraviroc (UK-427,857) (1), is presented. Synthesis of the three key fragments, β-amino ester 3, 4,4-difluorohexanecarboxylic acid (2), and 1,3,4-triazole-substituted tropane fragment 4 are described. Coupling strategies for these fragments are discussed and described, including synthetic challenges, protection strategies, impurity generation
Bifunctional Chimera That Coordinately Targets Human Immunodeficiency Virus 1 Envelope gp120 and the Host-Cell CCR5 Coreceptor at the Virus–Cell Interface
作者:Adel A. Rashad、Li-Rui Song、Andrew P. Holmes、Kriti Acharya、Shiyu Zhang、Zhi-Long Wang、Ebony Gary、Xin Xie、Vanessa Pirrone、Michele A. Kutzler、Ya-Qiu Long、Irwin Chaiken
DOI:10.1021/acs.jmedchem.8b00477
日期:2018.6.14
investigated the underlying hypothesis that antagonists of the HIV-1 envelope (Env) gp120 protein and the host-cell coreceptor (CoR) protein can be covalently joined into bifunctional synergistic combinations with improved antiviral capabilities. A synthetic protocol was established to covalently combine a CCR5small-moleculeantagonist and a gp120 peptide triazole antagonist to form the bifunctional chimera
Provided is a method for preparing a tropane derivative, maraviroc, including reacting a compound of formula (II) with a compound of formula (I), wherein the compound of formula (II) is prepared by the steps of acetylation of a compound of formula (III), activation and substitution of a compound of formula (IV) by a chlorination agent, cyclization of a compound of formula (V), and debenzylation of a compound of formula (VI) by hydrogenation. Hence, the present disclosure provides a method for preparing maraviroc with good yield and simple operation.
This work is a continuation of our previous research, concentrating this time on lead structure modification to increase the 5-HT1A receptor affinity and water solubility of designed compounds. Therefore, the compounds synthesised within the present project included structural analogues of 3 beta-acylamine derivatives of tropane with the introduction of a methyl substituent in the benzyl ring and a 2-quinoline, 3-quinoline, or 6-quinoline moiety. A series of novel 3 beta-aminotropane derivatives was evaluated for their affinity for 5-HT1A, 5-HT2A, and D-2 receptors, which allowed for the identification of compounds 12e, 12i, and 19a as ligands with highest affinity for the tested receptors; they were then subjected to further evaluation in preliminary in vivo studies. Selected compounds 12i and 19a displayed antipsychotic properties in the d-amphetamine-induced and MK-801-induced hyperlocomotor activity test in mice. Moreover, compound 19a showed significant antidepressant-like activity in the forced swim test in mice.