Synthesis and biological activity of 2-Carbomethoxy-3-catechol-8-azabicyclo[3.2.1]octanes
摘要:
Cocaine inhibits the dopamine transporter and the consequent elevation of dopamine is thought to contribute to the addictive properties of cocaine. Tropane analogues of cocaine, targeted to the dopamine transporter (DAT), are a significant focus of drug design for cocaine addiction medications. Herein, we report the function of the ortho hydroxy substituents in dopamine with respect to the azabicyclo[3.2.1]octane skeleton. The introduction of the o-dihydroxyl functionality led to reduced binding potency at monoamine transporters, rather than enhanced interaction with the DAT. It is therefore likely that the binding site for these compounds on the DAT is not the same as that for dopamine. Notwithstanding the moderate potency of the free catechols (> 100 nM), 7 manifested stimulant activity with a duration of effect that exceeded 4 h in a rat locomotor activity assay. Compound 10, a diacetoxy prodrug for 7, substituted fully for cocaine in a rat drug-discrimination paradigm and is now undergoing further investigation as a potential medication for cocaine abuse. (C) 2003 Elsevier Ltd. All rights reserved.
[EN] PYRIDAZINONE COMPOUND, PREPARATION METHOD, HERBICIDE COMPOSITION AND USE THEREOF [FR] COMPOSÉ DE PYRIDAZINONE, PROCÉDÉ DE PRÉPARATION, COMPOSITION HERBICIDE ET UTILISATION ASSOCIÉE [ZH] 一种哒嗪酮类化合物、制备方法、除草剂组合物及用途
[EN] PYRIDAZINONE COMPOUND, PREPARATION METHOD, HERBICIDE COMPOSITION AND USE THEREOF<br/>[FR] COMPOSÉ DE PYRIDAZINONE, PROCÉDÉ DE PRÉPARATION, COMPOSITION HERBICIDE ET UTILISATION ASSOCIÉE<br/>[ZH] 一种哒嗪酮类化合物、制备方法、除草剂组合物及用途
申请人:[en]JIANGSU FLAG CHEMICAL INDUSTRY CO., LTD.;[zh]江苏中旗科技股份有限公司
The present disclosure provides a compounds of Formula (I) or a pharmaceutically acceptable salt thereof and its use in,e.g. treating a condition, disease, or disorder in which inhibiting GPX4 in a subject is of therapeutic benefit, specifically in treating cancer or autoimmune diseases. This disclosure also features a composition containing the same as well as methods of using and making the same.
Synthesis and biological activity of 2-Carbomethoxy-3-catechol-8-azabicyclo[3.2.1]octanes
作者:Peter C Meltzer、Mark McPhee、Bertha K Madras
DOI:10.1016/j.bmcl.2003.07.014
日期:2003.11
Cocaine inhibits the dopamine transporter and the consequent elevation of dopamine is thought to contribute to the addictive properties of cocaine. Tropane analogues of cocaine, targeted to the dopamine transporter (DAT), are a significant focus of drug design for cocaine addiction medications. Herein, we report the function of the ortho hydroxy substituents in dopamine with respect to the azabicyclo[3.2.1]octane skeleton. The introduction of the o-dihydroxyl functionality led to reduced binding potency at monoamine transporters, rather than enhanced interaction with the DAT. It is therefore likely that the binding site for these compounds on the DAT is not the same as that for dopamine. Notwithstanding the moderate potency of the free catechols (> 100 nM), 7 manifested stimulant activity with a duration of effect that exceeded 4 h in a rat locomotor activity assay. Compound 10, a diacetoxy prodrug for 7, substituted fully for cocaine in a rat drug-discrimination paradigm and is now undergoing further investigation as a potential medication for cocaine abuse. (C) 2003 Elsevier Ltd. All rights reserved.
Rotational Energy Barrier around the C1–C11 Single Bond in Lamellarins: A Study by Variable-Temperature NMR
In order to estimate the free energy barrier to rotation around the C1-C11 single bond in lamellarins, new lamellarin analogues (1a), (1b), (2a), and (2b) possessing diastereotopic protons or carbons at the C1 aryl moiety were synthesized. Variable-temperature H-1 and C-13 NMR measurements of these analogues revealed that the free energy barriers to rotation around the C1-C11 axis in 5,6-saturated and 5,6-unsaturated lamellarins were around 72-74 and 83-87 kJ/mol, respectively.