[EN] THIOSEMICARBAZONES WITH MDR1 - INVERSE ACTIVITY<br/>[FR] THIOSEMICARBAZONES À ACTIVITÉ ANTI-MDR1
申请人:US HEALTH
公开号:WO2012033601A1
公开(公告)日:2012-03-15
Disclosed herein are drug compounds that have MDR-inverse activity and thus are effective against multidrug-resistant cells. Exemplary compounds disclosed herein have the structure;Formula (I). Examples of the disclosed compounds have been found to have, inter alia, efficacy in directly treating multidrug resistant cells, rendering multidrug resistant cells susceptible to other chemotherapeutics and in some instances reversing multidrug resistance.
5‐Fluoro/(trifluoromethoxy)‐2‐indolinone derivatives with anti‐interleukin‐1 activity
作者:Özge Soylu‐Eter、Zekiye Şeyma Sevinçli、Betül Ersoy、Bahar Hasanusta、Uğur Gatfar、Nathan A. Lack、Burak Erman、Ahmet Gül、Hakan S. Orer、Nilgün Karalı
DOI:10.1002/ardp.202300217
日期:2023.12
2-indolinone derivatives in preliminary studies to develop agents with anti-IL-1 activity. First, the putative efficacies and binding interactions of 2-indolinones were evaluated by docking studies. Second, previously synthesized 5-fluoro/(trifluoromethoxy)−1H-indole-2,3-dione 3-(4-phenylthiosemicarbazones) (compounds 47–69) which had the highest inhibitory effect in the screening were evaluated for inhibitory
Synthesis and Structure–Activity Evaluation of Isatin-β-thiosemicarbazones with Improved Selective Activity toward Multidrug-Resistant Cells Expressing P-Glycoprotein
作者:Matthew D. Hall、Kyle R. Brimacombe、Matthew S. Varonka、Kristen M. Pluchino、Julie K. Monda、Jiayang Li、Martin J. Walsh、Matthew B. Boxer、Timothy H. Warren、Henry M. Fales、Michael M. Gottesman
DOI:10.1021/jm2006047
日期:2011.8.25
Cancer multidrug resistance (MDR) mediated by ATP-binding cassette (ABC) transporters presents a significant unresolved clinical challenge. One strategy to resolve MDR is to develop compounds that selectively kill cells overexpressing the efflux transporter P-glycoprotein (MDR1, P-gp, ABCB1). We have previously reported structure-activity studies based around the lead compound NSC73306 (1, 1-isatin-4-(4'-methoxyphenyl)-3-thiosemicarbazone, 4.3-fold selective). Here we sought to extend this work on MDR1-selective analogues by establishing whether 1 showed "robust" activity against a range of cell lines expressing P-gp. We further aimed to synthesize and test analogues with varied substitution at the N4-position, and substitution around the N4-phenyl ring of isatin-beta-thiosemicarbazones (IBTs), to identify compounds with increased MDR1-selectivity. Compound 1 demonstrated MDR1-selectivity against all P-gp-expressing cell lines examined. This selectivity was reversed by inhibitors of P-gp ATPase activity. Structural variation at the 4'-phenyl position of 1 yielded compounds of greater MDR1-selectivity. Two of these analogues, 1-isatin-4-(4'-nitrophenyl)-3-thiosemicarbazone (22, 8.3-fold selective) and 1-isatin-4-(4'-tert-butyl phenyl)-3-thiosemicarbazone (32, 14.8-fold selective), were selected for further testing and were found to retain the activity profile of 1. These compounds are the most active IBTs identified to date.
[EN] TRKA AS A TARGET FOR INHIBITING APP CLEAVAGE AND/OR PROGRESSION OF ALZHEIMER'S DISEASE<br/>[FR] TRKA COMME CIBLE POUR L'INHIBITION DU CLIVAGE D'APP ET/OU LA PROGRESSION DE LA MALADIE D'ALZHEIMER
申请人:BUCK INST FOR RES ON AGING
公开号:WO2013026021A2
公开(公告)日:2013-02-21
In various embodiments method are provided for inhibiting (partially or fully) the C-terminal cleavage of APP resulting in the formation of APP-C31 peptide and APPneo (APP664) in a mammal. The methods typically involve administering or causing to be administered to the mammal a TrkA kinase inhibitor in an amount sufficient to reduce C-terminal cleavage of APP and production of a C31 peptide and/or APPneo. In certain embodiments the inhibitor comprises ADDN-1351 or a derivative thereof.
Dubenko,R.G. et al., Journal of general chemistry of the USSR, 1963, vol. 33, p. 266 - 268