Asymmetric synthesis of a homochiral differentially protected pseudo-meso bis-β-amino acid scaffold
摘要:
A strategy for the asymmetric synthesis of a homochiral differentially protected pseudo-meso bis-beta-amino acid scaffold utilising the conjugate addition of homochiral lithium amides and subsequent selective deprotection is demonstrated. (C) 2002 Elsevier Science Ltd. All rights reserved.
Synthesis of tetrahydroquinolines, hexahydrobenzoindolizines and an aryl phosphonate linker for the generation of catalytic antibodies
作者:Concepción González-Bello、Chris Abell、Finian J. Leeper
DOI:10.1039/a606968a
日期:——
Syntheses of
6-methoxy-1-methyl-1,2,3,4-tetrahydroquinoline-3-methanol 10 and
1,2,3,5,6,10b-hexahydrobenzo[g]indolizine-6-methanol 34
are described. The aryl phosphonic acid 14, which can be used as
a linker to a protein, is synthesised and coupled to the above
alcohols. These haptens, when linked to a protein, are intended
to generate antibodies able to catalyse cationic cyclisation
reactions.
Design and synthesis of a bivalent ligand to explore the putative heterodimerization of the mu opioid receptor and the chemokine receptor CCR5
作者:Yunyun Yuan、Christopher K. Arnatt、Guo Li、Kendra M. Haney、Derong Ding、Joanna C. Jacob、Dana E. Selley、Yan Zhang
DOI:10.1039/c2ob06801j
日期:——
extensively studied. Meanwhile, two research groups have described the putative MOR–CCR5 heterodimers in their independent studies. The purpose of this paper is to report the design and synthesis of a bivalent ligand to explore the biological and pharmacological process of the putative MOR–CCR5 dimerization phenomenon. The developed bivalent ligand thus contains two distinct pharmacophores linked through
二价配体方法不仅用于研究 G 蛋白偶联受体二聚化和/或寡聚化的潜在机制,而且还通过靶向该过程来增强配体亲和力和/或选择性以潜在治疗各种疾病。物质滥用和成瘾使人类免疫缺陷病毒 (HIV) 感染的预防和治疗变得更加困难处理. 吗啡是一种 μ 阿片受体 (MOR) 激动剂,可以通过上调趋化因子受体 CCR5 的表达来加速 HIV 感染,趋化因子受体 CCR5 是一种众所周知的 HIV 侵入宿主细胞的共同受体,这已被广泛研究。同时,两个研究小组在他们的独立研究中描述了推定的 MOR-CCR5 异二聚体。本文的目的是报告二价配体的设计和合成,以探索推定的 MOR-CCR5 二聚化现象的生物学和药理学过程。因此,开发的二价配体包含通过间隔物连接的两个不同的药效团;理想情况下,其中一个将与 MOR 交互,另一个与 CCR5 交互。选择纳曲酮和马拉维罗作为药效团来产生这种二价探针。制备这种二价配体的整个反应路线是收敛和高效的,涉及
[EN] BIVALENT LIGANDS FOR THE TREATMENT OF NEUROLOGICAL DISORDERS<br/>[FR] LIGANDS BIVALENTS POUR LE TRAITEMENT DE TROUBLES NEUROLOGIQUES
申请人:UNIV VIRGINIA COMMONWEALTH
公开号:WO2013106528A1
公开(公告)日:2013-07-18
Bivalent ligands that contain two pharmacophores linked through a spacer, one of which interacts with the μ-opioid receptor (MOR) and the other of which interacts with the co-receptor CC chemokine receptor 5 (CCR5), are used for the treatment of neurological disorders such as those associated with AIDS.
Asymmetric synthesis of homochiral differentially protected bis-β-amino acid scaffolds
作者:Steven D Bull、Stephen G Davies、Paul M Roberts、Edward D Savory、Andrew D Smith
DOI:10.1016/s0040-4020(02)00369-1
日期:2002.6
strategy for the asymmetric synthesis of homochiral [(R,R)- or (S,S)-], or meso-(R,S) bis-β-amino acid scaffolds, formally resulting from the stepwise conjugate addition of two differentially protected homochiral lithium amides to two α,β-unsaturated esters attached to a central arene, is demonstrated. Further manipulation enables the efficient synthesis of orthogonallyprotected pseudo-meso or pseudo-C2
Carbocation Lewis Acid TrBF<sub>4</sub>-Catalyzed 1,2-Hydride Migration: Approaches to (<i>Z</i>)-α,β-Unsaturated Esters and α-Branched β-Ketocarbonyls
作者:Wansong Shang、Depeng Duan、Yongjun Liu、Jian Lv
DOI:10.1021/acs.orglett.9b03005
日期:2019.10.4
CarbocationLewisacid TrBF4-catalyzed 1,2-hydride migration of α-alkyldiazoacetates themselves or in situ-generated cross-coupling adducts of aldehydes and α-alkyldiazoacetates has been developed, affording (Z)-α,β-unsaturated esters and α-branched β-ketocarbonyls, respectively, in good yields and with high regioselectivities.