Enone– and Chalcone–Chloroquinoline Hybrid Analogues: In Silico Guided Design, Synthesis, Antiplasmodial Activity, in Vitro Metabolism, and Mechanistic Studies
作者:Eric M. Guantai、Kanyile Ncokazi、Timothy J. Egan、Jiri Gut、Philip J. Rosenthal、Ravi Bhampidipati、Anitha Kopinathan、Peter J. Smith、Kelly Chibale
DOI:10.1021/jm200149e
日期:2011.5.26
metabolism. These analogues were synthesized and found to exhibit notable in vitro antimalarial activity. Compounds 25 and 27 were the most active of the analogues. In vitro metabolism studies indicated susceptibility of the analogues to hepatic metabolism. There was also evidence of primary glucuronidation for analogues 24–27. Presumed cis–trans isomerism of 12, 22, and 23 under in vitro metabolism assay
Synthesis, antitubercular activity, and molecular modeling studies of analogues of isoliquiritigenin and liquiritigenin, bioactive components from Glycyrrhiza glabra
Isoliquiritigenin (ISL, 1) and liquiritigenin (LTG, 2) were isolated from the rhizomes of Glycyrrhiza glabra. In an attempt to develop potent and selective antituberculosis agents, a series of ISL analogues were synthesized mainly via acid- and base-catalyzed Claisen-Schmidt condensation reaction for their antitubercular activity. Compared to ISL (MIC = 25 mu g/mL), analogues 5, 8, and 10 showed similar antitubercular activity, but, interestingly, 6, 7, and 15 exhibited twofold higher activity (MIC = 12.5 mu g/mL) over ISL, against Mycobacterium tuberculosis. Among the LTG derivatives, LTG 4'-acetate and LTG-oxime were found to be as active (MIC = 25 mu g/mL) as LTG. It is the first report on antimycobacterial activity of these ISL- and LTG-based derivatives. Molecular docking and in silico ADME studies revealed that compounds 6, 7, and 15 are potent inhibitors of M. tuberculosis H(37)Rv alanine dehydrogenase and showed compliance with standard parameters of drug likeness.
NOTCH INHIBITORS FOR USE IN THE TREATMENT OF T-CELL ACUTE LYMPHOBLASTIC LEUKEMIA
申请人:UNIVERSITÀ DEGLI STUDI DI ROMA "LA SAPIENZA"
公开号:US20190337916A1
公开(公告)日:2019-11-07
Compounds of formula (I) in the capacity of compounds with anti-tumor activity for the treatment of T-cell acute lymphoblastic leukemia (T-ALL).
Synthesis and Characterization of a Phosphate Prodrug of Isoliquiritigenin
作者:Kumaraswamy Boyapelly、Marc-André Bonin、Hussein Traboulsi、Alexandre Cloutier、Samuel C. Phaneuf、Daniel Fortin、André M. Cantin、Martin V. Richter、Eric Marsault
DOI:10.1021/acs.jnatprod.6b00600
日期:2017.4.28
cosolvents, a phosphate prodrug strategy was implemented relying on the availability of phenol groups in the molecule. In this study, a phosphate group was added to position C-4 of 1, leading to the more water-soluble prodrug 2 and its ammonium salt 3, which possesses increased stability compared to 2. Herein are reported the synthesis, characterization, solubility, and stability of phosphate prodrug 3
A novel α-hydroxydihydrochalcone from the heartwood of Pterocarpus angolensis D.C.: absolute configuration, synthesis, photochemical transformations, and conversion into α-methyldeoxybenzoins
作者:Barend C. B. Bezuidenhoudt、E. Vincent Brandt、David G. Roux
DOI:10.1039/p19810000263
日期:——
The absoluteconfiguration of (αR)-α,2′-dihydroxy-4,4′-dimethoxydihydrochalcone from the heartwood of PterocarpusangolensisD.C. is established. Its structure is substantiated by synthesis and by photochemical conversion of its α-O-tosyl derivative into an α-tosyloxymethyldeoxybenzoin and hence to the α-methyldeoxybenzoin analogue. The photochemical step also leads, amongst others, to α-hydroxymethyldeoxybenzoin