Activity of 2,6,9-trisubstituted purines as potent PDGFRα kinase inhibitors with antileukaemic activity
摘要:
Receptor tyrosine kinase PDGFR alpha is often constitutively activated in various tumours and is regarded as a drug target. Here, we present a collection of 2,6,9-trisubstituted purines with nanomolar potency against PDGFR alpha and strong and selective cytotoxicity in the human eosinophilic leukaemia cell line EOL-1 that expresses the FIP1L1-PDGFRA oncogene. In treated EOL-1 cells, the example compound 14q inhibited the autophosphorylation of PDGFR alpha and the phosphorylation of STAT3 and ERK1/2. Interestingly, we observed pronounced and even increased effects of 14q on PDGFR alpha and some of its downstream signalling pathways after drug washout. In accordance with suppressed PDGFR alpha signalling, treated cells were arrested in the G1 phase of the cell cycle and eventually underwent apoptosis. Our results show that substituted purines can be used as specific modulators of eosinophilic leukaemia. (C) 2019 Elsevier Masson SAS. All rights reserved.
[EN] ISOQUINOLINONE DERIVATIVES AS NK3 ANTAGONISTS<br/>[FR] DÉRIVÉS DE L'ISOQUINOLINONE UTILISÉS COMME ANTAGONISTES DES NK3
申请人:LUNDBECK & CO AS H
公开号:WO2009156339A1
公开(公告)日:2009-12-30
Isoquinolone derivatives of the general formula I are provided. The compounds are NK3 antagonists and useful for the treatment of e.g. psychosis and schizophrenia.
提供了一般式I的异喹啉衍生物。这些化合物是NK3拮抗剂,可用于治疗精神病和精神分裂症等疾病。
Agent for Treatment of Eye Diseases
申请人:Kakizuka Akira
公开号:US20140148416A1
公开(公告)日:2014-05-29
The present invention provides agents effective to treat eye diseases, pharmaceutical compositions comprising them, methods for preparing pharmaceuticals for treatment of eye diseases comprising using the agents, use of the agents in manufacture of pharmaceuticals for treatment of eye diseases and methods for treating eye diseases comprising administering the agents or the pharmaceutical compositions. The eye diseases treated by the present invention include particularly glaucoma, especially normal tension glaucoma, or retinitis pigmentosa. The present invention provides the compound of formula (I)
wherein R is as defined in the description.
The present invention provides compounds which can regulate VCP activity. The present invention provides the compound of formula (I)
(R is as defined in the description)
or oxides, esters, prodrugs, pharmaceutically acceptable salts or solvates thereof. The compounds can regulate VCP activity, and thus are useful for treating VCP-mediated diseases such as neurodegenerative diseases.
Necroptosis inducers represent a promising potential treatment for drug-resistant cancer. We herein describe the structure modification of E6, which was identified recently as a potent and selective necroptosis inducer. The studies described herein demonstrate for the first time that functionalized biphenyl derivatives possess necroptosis inducer activity. Furthermore, these studies have led to the identification of two promising compounds (5h and 5j) that can be used for further optimization studies as well as mechanism of action investigations. (C) 2015 Elsevier Ltd. All rights reserved.
An Active, General, and Long-Lived Palladium Catalyst for Cross-Couplings of Deactivated (Hetero)aryl Chlorides and Bromides with Arylboronic Acids
An active, general, and long-lived palladium catalyst for Suzuki-Miyaura reactions of aryl and heteroaryl chlorides deactivated by steric hindrance, electron richness, and coordinating functional groups is reported. In reactions of arylbromide bearing two o-tert-butyl substituents, C(sp(3))-H arylation of the tert-butyl group, rather than the Suzuki-Miyaura reaction, proceeded in excellent yield. The key to the success of the reactions was the development of biphenylene-substituted dicyclohexylruthenocenylphosphine (CyR-Phos) as a supporting ligand.