Discovery of CC Chemokine Receptor-3 (CCR3) Antagonists with Picomolar Potency
摘要:
Starting with our previously described(20) class of CC chemokine receptor-3 (CCR3) antagonist, we improved the potency by replacing the phenyl linker of 1 with a cyclohexyl linker and by replacing the 4-benzylpiperidine with a 3-benzylpiperidine. The resulting compound, 32, is a potent and selective antagonist of CCR3. SAR studies showed that the 3-acetylphenyl urea of 32 could be replaced with heterocyclic ureas or heterocyclic-substituted phenyl ureas and still maintain the potency (inhibition of eotaxin-induced chemotaxis) of this class of compounds in the low-picomolar range (IC50 = 10-60 pM), representing some of the most potent CCR3 antagonists reported to date. The potency of 32 for mouse CCR3 (chemotaxis IC50 = 41 nM) and its oral bioavailability in mice (20% F) were adequate to assess the efficacy in animal models of allergic airway inflammation. Oral administration of 32 reduced eosinophil recruitment into the lungs in a dose-dependent manner in these animal models. On the basis of its overall potency, selectivity, efficacy, and safety profile, the benzenesulfonate salt of 32, designated DPC168, entered phase 1 clinical trials.
[EN] NOVEL UREA DERIVATIVES AS TEC KINASE INHIBITORS AND USES THEREOF<br/>[FR] NOUVEAUX DÉRIVÉS D'URÉE EN TANT QU'INHIBITEURS DE KINASE TEC ET LEURS UTILISATIONS
申请人:GLENMARK PHARMACEUTICALS SA
公开号:WO2013024427A1
公开(公告)日:2013-02-21
Provided are urea compounds of formula (I) as Tec kinase inhibitors, in particular ITK (interleukin-2 inducible tyrosine kinase) inhibitors. Also provided herein are processes for preparing compounds described herein, intermediates used in their synthesis, pharmaceutical compositions thereof, and methods for treating or preventing diseases, conditions and/or disorders mediated by ITK.
Hybridization strategy is an effective strategy to obtain multi-target inhibitors in drug design. In this study, we assembled the pharmacophores of momelotinib and tandutinib to get a series of 4-piperazinyl-2-aminopyrimidine derivatives. All compounds were tested for the inhibition of JAK2 and FLT3 enzymes, of which, compounds with potent enzyme activities were assayed for antiproliferative activities against three cancer cell lines (HEL, MV4-11, and HL60). The structure-activity relationship studies were conducted through variations in two regions, the "A" phenyl ring and "B" phenyl ring. Compound 14j showed the most balanced in vitro inhibitory activity against JAK2 and FLT3 (JAK2 IC50 = 27 nM, FLT3 IC50 = 30 nM), and it also showed potent inhibition against the above tested cell lines. In the cellular context, 14j strongly induced apoptosis by arresting cell cycle in the G(1)/S phase, and was selected as a promising JAK2/FLT3 dual inhibitor. (C) 2019 Elsevier Masson SAS. All rights reserved.
[EN] UREA DERIVATIVES WHICH CAN BE USED TO TREAT CANCER<br/>[FR] DÉRIVÉS D'URÉE POUVANT ÊTRE UTILISÉS POUR TRAITER LE CANCER
申请人:[en]SCORPION THERAPEUTICS, INC.
公开号:WO2022265993A1
公开(公告)日:2022-12-22
This disclosure provides compounds of Formula (I), Formula (II), and pharmaceutically acceptable salts thereof, that inhibit phosphatidylinositol 4,5-bisphosphate 3-kinase (PI3K) isoform alpha (PI3Ka). These chemical entities are useful, e.g., for treating a condition, disease or disorder in which increased (e.g., excessive) PI3Ka activation contributes to the pathology and/or symptoms and/or progression of the condition, disease or disorder (e.g., cancer) in a subject (e.g., a human). This disclosure also provides compositions containing the same as well as methods of using and making the same.