Development of Potent and Selective Inhibitors of Aldo–Keto Reductase 1C3 (Type 5 17β-Hydroxysteroid Dehydrogenase) Based on N-Phenyl-Aminobenzoates and Their Structure–Activity Relationships
摘要:
Aldo-keto reductase 1C3 (AKR1C3; type 5 17 beta-hydroxysteroid dehydrogenase) is overexpressed in castration resistant prostate cancer (CRPC) and is implicated in the intratumoral biosynthesis of testosterone and 5 alpha-dihydrotestosterone. Selective AKR1C3 inhibitors are required because compounds should not inhibit the highly related AKR1C1 and AKR1C2 isoforms which are involved in the inactivation of Sa-dihydrotestosterone. NSAIDs, N-phenylanthranilates in particular, are potent but nonselective AKR1C3 inhibitors. Using flufenamic acid, 2-{[3-(trifluoromethyl)phenyl]amino}benzoic acid, as lead compound, five classes of structural analogues were synthesized and evaluated for AKR1C3 inhibitory potency and selectivity. Structure-activity relationship (SAR) studies revealed that a meta-carboxylic acid group relative to the amine conferred pronounced AKR1C3 selectivity without loss of potency, while electron withdrawing groups on the phenylamino B-ring were optimal for AKR1C3 inhibition. Lead compounds did not inhibit COX-1 or COX-2 but blocked the AKR1C3 mediated production of testosterone in LNCaP-AKR1C3 cells. These compounds offer promising leads toward new therapeutics for CRPC.
The present invention relates to novel hydroxyethylamine compounds having Asp2 (β-secretase, BACE1 or Memapsin) inhibitory activity, processes for their preparation, to compositions containing them and to their use in the treatment of diseases characterised by elevated β-amyloid levels or β-amyloid deposits, particularly Alzheimer's disease.
[EN] NOVEL MELATONERGIC LIGANDS AND USES THEREOF<br/>[FR] NOUVEAUX LIGANDS MÉLATONINERGIQUES ET LEURS UTILISATIONS
申请人:[en]GOBBI, Gabriella
公开号:WO2022259219A1
公开(公告)日:2022-12-15
The present invention relates to novel melatonin ligands capable of modulating the melatonin receptors, particularly the melatonin receptor subtype MT2. Moreover, these compounds have been shown to be effective in the treatment of diseases and disorders associated with MT2 activity such as sleep disorders, major depression disorder, mood disorders, anxiety disorders, autism spectrum disorder, cognitive disorders, dementia,metabolic diseases included diabetes Type 1 and type 2, circadian rhythms disorders, pain, acute pain, inflammatory pain, chronic pain, neuropathic pain.
Development of Potent and Selective Inhibitors of Aldo–Keto Reductase 1C3 (Type 5 17β-Hydroxysteroid Dehydrogenase) Based on <i>N</i>-Phenyl-Aminobenzoates and Their Structure–Activity Relationships
作者:Adegoke O. Adeniji、Barry M. Twenter、Michael C. Byrns、Yi Jin、Mo Chen、Jeffrey D. Winkler、Trevor M. Penning
DOI:10.1021/jm201547v
日期:2012.3.8
Aldo-keto reductase 1C3 (AKR1C3; type 5 17 beta-hydroxysteroid dehydrogenase) is overexpressed in castration resistant prostate cancer (CRPC) and is implicated in the intratumoral biosynthesis of testosterone and 5 alpha-dihydrotestosterone. Selective AKR1C3 inhibitors are required because compounds should not inhibit the highly related AKR1C1 and AKR1C2 isoforms which are involved in the inactivation of Sa-dihydrotestosterone. NSAIDs, N-phenylanthranilates in particular, are potent but nonselective AKR1C3 inhibitors. Using flufenamic acid, 2-[3-(trifluoromethyl)phenyl]amino}benzoic acid, as lead compound, five classes of structural analogues were synthesized and evaluated for AKR1C3 inhibitory potency and selectivity. Structure-activity relationship (SAR) studies revealed that a meta-carboxylic acid group relative to the amine conferred pronounced AKR1C3 selectivity without loss of potency, while electron withdrawing groups on the phenylamino B-ring were optimal for AKR1C3 inhibition. Lead compounds did not inhibit COX-1 or COX-2 but blocked the AKR1C3 mediated production of testosterone in LNCaP-AKR1C3 cells. These compounds offer promising leads toward new therapeutics for CRPC.
<i>N</i>
‐(Anilinoethyl)amide Melatonergic Ligands with Improved Water Solubility and Metabolic Stability
liable sites, introduction of hydrophilic substituents and design of more basic derivatives. Thermodynamic solubility, microsomal stability and lipophilicity of new compounds were experimentally evaluated, together with their MT1 and MT2 binding affinities. Introduction of a m-hydroxymethyl substituent on the phenyl ring of UCM765 and replacement of the replacement of the N,N-diphenyl-amino scaffold with