37148-47-3Relevant articles and documents
Red-shifted tetra-ortho-halo-azobenzenes for photo-regulated transmembrane anion transport
Bo, Zonghua,Duarte, Fernanda,Kerckhoffs, Aidan,Langton, Matthew J.,Penty, Samuel E.
supporting information, p. 9058 - 9067 (2021/11/04)
Photo-responsive synthetic ion transporters are of interest as tools for studying transmembrane transport processes and have potential applications as targeted therapeutics, due to the possibility of spatiotemporal control and wavelength-dependent function. Here we report the synthesis of novel symmetric and non-symmetric red-shifted tetra-ortho-chloro- and tetra-ortho-fluoro azobenzenes, bearing pendant amine functionality. Functionalisation of the photo-switchable scaffolds with squaramide hydrogen bond donors enabled the preparation of a family of anion receptors, which act as photo-regulated transmembrane chloride transporters in response to green or red light. The subtle effects of chlorine/fluorine substitution,meta/parapositioning of the anion receptors, and the use of more flexible linkers are explored. NMR titration experiments on the structurally diverse photo-switchable receptors reveal cooperative binding of chloride in theZ, but notEisomer, by the two squaramide binding sites. These results are supported by molecular dynamics simulations in explicit solvent and model membranes. We show that this intramolecular anion recognition leads to effective switching of transport activity in lipid bilayer membranes, in which optimalZisomer activity is achieved using a combination of fluorine substitution andpara-methylene spacer units.
Novel Aryl-Substituted Pyrimidones as Inhibitors of 3-Mercaptopyruvate Sulfurtransferase with Antiproliferative Efficacy in Colon Cancer
Bantzi, Marina,Augsburger, Fiona,Loup, Jérémie,Berset, Yan,Vasilakaki, Sofia,Myrianthopoulos, Vassilios,Mikros, Emmanuel,Szabo, Csaba,Bochet, Christian G.
, p. 6221 - 6240 (2021/05/06)
The enzyme 3-mercaptopyruvate sulfurtransferase (3-MST) is one of the more recently identified mammalian sources of H2S. A recent study identified several novel 3-MST inhibitors with micromolar potency. Among those, (2-[(4-hydroxy-6-methylpyrimidin-2-yl)sulfanyl]-1-(naphthalen-1-yl)ethan-1-one) or HMPSNE was found to be the most potent and selective. We now took the central core of this compound and modified the pyrimidone and the arylketone sides independently. A 63-compound library was synthesized; compounds were tested for H2S generation from recombinant 3-MST in vitro. Active compounds were subsequently tested to elucidate their potency and selectivity. Computer modeling studies have delineated some of the key structural features necessary for binding to the 3-MST's active site. Six novel 3-MST inhibitors were tested in cell-based assays: they exerted inhibitory effects in murine MC38 and CT26 colon cancer cell proliferation; the antiproliferative effect of the compound with the highest potency and best cell-based activity (1b) was also confirmed on the growth of MC38 tumors in mice.
BETA-HYDROXYETHYLAMINES FOR USE IN THE TREATMENT OR PREVENTION OF NON-ALCOHOLIC FATTY LIVER DISEASES
-
Page/Page column 63; 64, (2019/04/11)
There is herein provided a compound of formula (I) or a pharmaceutically acceptable salt thereof, for use in the treatment of a non-alcoholic fatty liver disease (NAFLD), such as non-alcoholic steatohepatitis (NASH), wherein X, R1, R2, R3 and n have meanings as provided in the description.
