Synthesis and evaluation of 4-substituted piperidines and piperazines as balanced affinity μ opioid receptor (MOR) agonist/δ opioid receptor (DOR) antagonist ligands
摘要:
In this letter, we describe a series of 4-substituted piperidine and piperazine compounds based on tetrahydroquinoline 1, a compound that shows balanced, low nanomolar binding affinity for the mu opioid receptor (MOR) and the delta opioid receptor (DOR). We have shown that by changing the length and flexibility profile of the side chain in this position, binding affinity is improved at both receptors by a significant degree. Furthermore, several of the compounds described herein display good efficacy at MOR, while simultaneously displaying DOR antagonism. The MOR agonist/DOR antagonist has shown promise in the reduction of negative side effects displayed by selective MOR agonists, namely the development of dependence and tolerance. (C) 2013 Elsevier Ltd. All rights reserved.
Synthesis and evaluation of 4-substituted piperidines and piperazines as balanced affinity μ opioid receptor (MOR) agonist/δ opioid receptor (DOR) antagonist ligands
摘要:
In this letter, we describe a series of 4-substituted piperidine and piperazine compounds based on tetrahydroquinoline 1, a compound that shows balanced, low nanomolar binding affinity for the mu opioid receptor (MOR) and the delta opioid receptor (DOR). We have shown that by changing the length and flexibility profile of the side chain in this position, binding affinity is improved at both receptors by a significant degree. Furthermore, several of the compounds described herein display good efficacy at MOR, while simultaneously displaying DOR antagonism. The MOR agonist/DOR antagonist has shown promise in the reduction of negative side effects displayed by selective MOR agonists, namely the development of dependence and tolerance. (C) 2013 Elsevier Ltd. All rights reserved.
An expeditious one-pot synthesis of thiourea derivatives of carbohydrates from sugar azides
作者:Kunj B. Mishra、Sanchayita Rajkhowa、Vinod K. Tiwari
DOI:10.1080/07328303.2020.1822997
日期:2020.9.1
Abstract A facile and practical route for the high-yielding synthesis of various thiourea derivatives of carbohydrates has been accomplished through the coupling of carbohydrate-based azides and amines under Staudinger condition (PPh3/CS2). Structures of all the developed compounds have been elucidated using various spectroscopic techniques, including NMR, IR, and MS. Weak interactions within compound