[EN] HUMAN ETS-RELATED GENE (ERG) COMPOUNDS AS THERAPEUTICS AND METHODS FOR THEIR USE [FR] COMPOSÉS DE GÈNES (ERG) ASSOCIÉS À L'ETS HUMAIN UTILISÉS EN TANT QU'AGENTS THÉRAPEUTIQUES ET LEURS PROCÉDÉS D'UTILISATION
O-alkylhydroxylamines as rationally-designed mechanism-based inhibitors of indoleamine 2,3-dioxygenase-1
摘要:
Indoleamine 2,3-dioxygenase-1 (IDO1) is a promising therapeutic target for the treatment of cancer, chronic viral infections, and other diseases characterized by pathological immune suppression. Recently important advances have been made in understanding IDO1's catalytic mechanism. Although much remains to be discovered, there is strong evidence that the mechanism proceeds through a heme-iron bound alkylperoxy transition or intermediate state. Accordingly, we explored stable structural mimics of the alkylperoxy species and provide evidence that such structures do mimic the alkylperoxy transition or intermediate state. We discovered that O-benzylhydroxylamine, a commercially available compound, is a. potent sub-micromolar inhibitor of IDO1. Structure activity studies of over forty derivatives of O-benzylhydroxylamine led to further improvement in inhibitor potency, particularly with the addition of halogen atoms to the meta position of the aromatic ring. The most potent derivatives and the lead, O-benzylhydroxylamine, have high ligand efficiency values, which are considered an important criterion for successful drug development. Notably, two of the most potent compounds demonstrated nanomolar-level cell-based potency and limited toxicity. The combination of the simplicity of the structures of these compounds and their excellent cellular activity makes them quite attractive for biological exploration of IDO1 function and antitumor therapeutic applications. (C) 2015 Elsevier Masson SAS. All rights reserved.
Compounds and methods for modulating mesenchymal cell function, for instance smooth muscle and fibroblast proliferation or cytokine expression, and for treating conditions associated with mesenchymal cell function, for instance airway hyperresponsiveness associated with asthma. The compounds also supress inflammation. The compounds are a class of estratriene derivates, and includes various derivatives of 2-methoxyestradiol comprising a group A, including a substituted aromatic substituent in the 2-, 6- or 17- position.
申请人:Industry-Academic Cooperation Foundation, Yonsei University
公开号:US20140378399A1
公开(公告)日:2014-12-25
The present disclosure relates to a novel vascular leakage inhibitor. The novel vascular leakage inhibitor of the present invention inhibits the apoptosis of vascular endothelial cells, inhibits the formation of actin stress fibers induced by VEGF, and enhances the cortical actin ring structure, thereby inhibiting vascular leakage. Accordingly, the vascular leakage inhibitor of the present invention can prevent or treat various diseases caused by vascular leakage. Since the vascular leakage inhibitor of the present invention is synthesized from commercially available or easily synthesizable pregnenolones, it has remarkably superior feasibility of commercial synthesis.
Compounds and methods for modulating mesenchymal cell function, for instance smooth muscle and fibroblast proliferation or cytokine expression, and for treating conditions associated with mesenchymal cell function, for instance airway hyperresponsiveness associated with asthma. The compounds also suppress inflammation. The compounds are a class of estratriene derivates, and includes various derivatives of 2-methoxyestradiol comprising a group A, including a substituted aromatic substituent in the 2-, 6- or 17-position.
Catalytic <i>Ortho</i>-Acetoxylation of Masked Benzyl Alcohols via an <i>Exo</i>-Directing Mode
作者:Zhi Ren、Jonathan E. Schulz、Guangbin Dong
DOI:10.1021/acs.orglett.5b01098
日期:2015.6.5
A Pd-catalyzed ortho-acetoxylation of masked benzyl alcohols to synthesize various 2-hydroxyalkylphenol derivatives is reported. The 2,6-dimethoxyl benzaldoxime proved to be an efficient exo-type directing group for arene (sp(2)) CH functionalization. Two strategies were demonstrated to remove the directing group through N-O and C-O bond cleavages. A high catalyst turnover (>1000) was obtained to illustrate the practicality of this method.
Saczewski, Jaroslaw; Hudson, Alan L.; Rybczynska, Apolonia, Acta poloniae pharmaceutica, 2009, vol. 66, # 6, p. 671 - 680
作者:Saczewski, Jaroslaw、Hudson, Alan L.、Rybczynska, Apolonia