[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.
AQUA MEDIATED ONE POT FACILE SYNTHESIS OF NOVEL THIOXO-1,2,4-TRIAZIN-5(2H)-ONE AND [1,2,4] TRIAZINO[5,6-A]INDOLE DERIVATIVES AND THEIR BIOLOGICAL ACTIVITIES
Rapid and highly efficient one pot green chemical synthesis of substituted 6-(2-aminophenyl)-4-(4-substitutedphenyl)-3-thioxo-3,4-dihydro-1,2,4-triazin-5(2H)-one and 8-substituted-3,5-dihydro-2H-[1,2,4]triazino[5,6-b]indole is carried out in aqueous medium under microwave irradiation. Improved synthesis of potent bioactive Schiff and N-Mannich bases of hexahydro-1H-indole-2,3-dione is also reported. The title compounds are easily accessible by various approaches; even waste free approaches have been developed. The operational simplicity, environmentally benign conditions and high yield achieved in a very short reaction time are major benefits that meet the requirements of green production, including saving energy and high efficiency. The results obtained under microwaves are compared with that of conventional heating. Structural assignments are based on spectroscopic data. Compounds have also been screened for antibacterial and antifungal activities.
Synthesis and Primary Cytotoxicity Evaluation of New 5-Bromo-3-substituted-hydrazono-1H-2-indolinones
In this study a new series of 5-bromo-3-[(3-subtituted-5-methyl-4-thiazolidinone-2-lidene)-hydrazono]-1H-2-indolinones (3a-i) and 5-bromo-3-[(2-thioxo-3-substituted-4,5-imidazolidinedione-1-yl)imino]-1H-2-indolinones (4a-f) was synthesized by the cyclization of 5-bromo-3-(N-substituted-thiosemicarbazono)-1 H-2-indolinones (2 a-i) with ethyl 2-bromopropionate in anhydrous ethanolic medium and oxalyl cloride in anhydrous diethyl ether, respectively Six compounds chosen as prototypes were evaluated in the 3-cell line, one dose in vitro primary cytotoxicity assay. Four of them were evaluated against the full panel of 60 human tumor cell lines at a minimum of five concentrations at 10-fold dilutions. Among the compounds tested, the 4-fluorophenylthiosemicarbazone derivative 2f showed the most favorable cytotoxicity This compound demonstrated the most marked effects on a breast cancer cell line (BT-549, log(10)GI(50) value -6.40), a non small cell lung cancer cell line (NCl-H23, log(10)GI(50) value -6.10), and an ovarian cancer cell line (IGROV1, log(10)GI(50) value -6.02).
OMAR, A. -M. M. E.;ESHBA, N. H.;SALAMA, H. M., ARCH. PHARM., 1984, 317, N 8, 701-709
作者:OMAR, A. -M. M. E.、ESHBA, N. H.、SALAMA, H. M.
DOI:——
日期:——
Methods for the Identification and Use of Compounds Suitable for the Treatment of Drug Resistant Cancer Cells
申请人:Szakacs Gergely
公开号:US20080214606A1
公开(公告)日:2008-09-04
The present invention relates to novel methods for the identification of compounds useful for the treatment of drug resistance, and to novel treatment methods using the identified compounds.