SAR study of celastrol analogs targeting Nur77-mediated inflammatory pathway
摘要:
Nur77, an orphan member of the nuclear receptor superfamily, plays an important role in the regulation of inflammatory processes. Our previous work found that celastrol, a pentacyclic triterpene, bound to Nur77 to inhibit inflammation in a Nur77-dependent manner. Celastrol binding to Nur77 promotes Nur77 translocation from nucleus to cytoplasm, resulting in clearance of inflamed mitochondria and then alleviation of inflammation. Here, we report the design, synthesis, SAR study and biological evaluation of a series of celastrol analogs. A total of 24 celastrol derivatives were made. Compound 3a with a K-d of 0.87 mu M was found to be less toxic than celastrol and could be a hit molecule for further optimization. (C) 2019 Elsevier Masson SAS. All rights reserved.
Remarkable Stereospecific Conjugate Additions to the Hsp90 Inhibitor Celastrol
摘要:
Celastrol, an important natural product and Hsp90 inhibitor with a wide range of biological and medical activities and broad use as a biological probe, acts by an as yet undetermined mode of action. It is known to undergo Michael additions with biological sulfur nucleophiles. Here it is demonstrated that nucleophiles add to the pharmacophore of celastrol in a remarkable stereospecific manner. Extensive characterization of the addition products has been obtained using NMR spectrometry, nuclear Overhauser effects, and density functional theory to determine facial selectivity and gain insight into the orbital interactions of the reactive centers. This stereospecificity of celastrol may be important to its protein target selectivity.
[EN] ANALOGS OF CELASTROL<br/>[FR] ANALOGUES DE CÉLASTROL
申请人:ERX PHARMACEUTICALS INC
公开号:WO2017070615A1
公开(公告)日:2017-04-27
Described herein, inter alia, are compositions and methods for treating or preventing obesity and using the same.
本文描述了用于治疗或预防肥胖以及使用这些方法的组合物和方法。
COMPOUNDS FOR THE TREATMENT OF OBESITY AND METHODS OF USE THEREOF
申请人:The Children's Medical Center Corporation
公开号:US20150274634A1
公开(公告)日:2015-10-01
Pentacyclic triterpene compounds are provided herein. Also provided are pharmaceutical formulations containing a therapeutically effective amount of one or more of the compounds, or pharmaceutically acceptable salts or prodrugs thereof, in combination with one or more pharmaceutically acceptable excipients. The pharmaceutical formulations can be administered to a pre-obese, obese, or morbidly obese patient to induce weight loss, reduce body fat, reduce food intake, improve glucose homeostasis, prevent obesity, or a combination thereof. The compounds can also be co-administered with leptin or a leptin analog.
ANALOGS OF CELASTROL
申请人:ERX Pharmaceuticals, Inc.
公开号:US20210061851A1
公开(公告)日:2021-03-04
Described herein, inter alia, are compositions and methods for treating or preventing obesity and using the same.
[EN] CELASTROL AND DERIVATIVES FOR THE TREATMENT OF OBESITY<br/>[FR] CÉLASTROL ET SES DÉRIVÉS POUR LE TRAITEMENT DE L'OBÉSITÉ
申请人:CHILDRENS MEDICAL CENTER
公开号:WO2015148802A1
公开(公告)日:2015-10-01
Pentacyclic triterpene compounds are provided herein. Also provided are pharmaceutical formulations containing a therapeutically effective amount of one or more of the compounds, or pharmaceutically acceptable salts or prodrugs thereof, in combination with one or more pharmaceutically acceptable excipients. The pharmaceutical formulations can be administered to a pre-obese, obese, or morbidly obese patient to induce weight loss, reduce body fat, reduce food intake, improve glucose homeostasis, prevent obesity, or a combination thereof. The compounds can also be co-administered with leptin or a leptin analog.