843653-06-5Relevant academic research and scientific papers
Design, radiosynthesis and preliminary biological evaluation in mice of a brain-penetrant18f-labelled σ2 receptor ligand
Moldovan, Rare?-Petru,Gündel, Daniel,Teodoro, Rodrigo,Ludwig, Friedrich-Alexander,Fischer, Steffen,Toussaint, Magali,Schepmann, Dirk,Wünsch, Bernhard,Brust, Peter,Deuther-Conrad, Winnie
, (2021)
The σ2 receptor (transmembrane protein 97), which is involved in cholesterol homeostasis, is of high relevance for neoplastic processes. The upregulated expression of σ2 receptors in cancer cells and tissue in combination with the antiproliferative potency of σ2 receptor ligands motivates the research in the field of σ2 receptors for the diagnosis and therapy of different types of cancer. Starting from the well described 2-(4-(1H-indol-1-yl)butyl)-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinoline class of compounds, we synthesized a novel series of fluorinated derivatives bearing the F-atom at the aromatic indole/azaindole subunit. RM273 (2-[4-(6-fluoro-1H-pyrrolo[2,3-b]pyridin-1-yl)butyl]-6,7-dimethoxy-1,2,3,4-tetrahydroisoquinoline) was selected for labelling with18F and evaluation regarding detection of σ2 receptors in the brain by positron emission tomography. Initial metabolism and biodistribution studies of [18F]RM273 in healthy mice revealed promising penetration of the radioligand into the brain. Preliminary in vitro autoradiography on brain cryosections of an orthotopic rat glioblastoma model proved the potential of the radioligand to detect the upregulation of σ2 receptors in glioblastoma cells compared to healthy brain tissue. The results indicate that the herein developed σ2 receptor ligand [18F]RM273 has potential to assess by non-invasive molecular imaging the correlation between the availability of σ2 receptors and properties of brain tumors such as tumor proliferation or resistance towards particular therapies.
Synthesis and cytotoxicity evaluation of olivacine-indole hybrids tethered by alkyl linkers
Pis Diez, Cristian M.,Céspedes, Mariela,Di Venosa, Gabriela M.,Calvo, Gustavo,Avigliano, Esteban,Casas, Adriana G.,Palermo, Jorge A.
supporting information, (2021/02/03)
In this work, eleven new derivatives were prepared of the alkaloid olivacine (1), which was isolated from the bark of Aspidosperma australe. These compounds (7a–k) are hybrids of olivacine and indoles or carbazole, tethered by alkyl chains of variable lengths (C-4, C-5 or C-6). Compounds 7a–k showed increased cytotoxicity towards a panel of four cell lines. The subcellular localization of olivacine and of the synthetic derivatives was studied by fluorescence microscopy. The cycles of K562 cells exposed to olivacine or compounds 7a–k were analysed by flow cytometry, and showed, for some of the new derivatives, a different profile of cell distribution among the phases of the cycle when compared to olivacine, which is indicative of lysosomal apoptosis.
Advances toward new antidepressants with dual serotonin transporter and 5-HT1A receptor affinity within a class of 3-aminochroman derivatives. Part 2
Hatzenbuhler, Nicole T.,Baudy, Reinhardt,Evrard, Deborah A.,Failli, Amedeo,Harrison, Boyd L.,Lenicek, Steven,Mewshaw, Richard E.,Saab, Annmarie,Shah, Uresh,Sze, Jean,Zhang, Minsheng,Zhou, Dahui,Chlenov, Michael,Kagan, Michael,Golembieski, Jeannette,Hornby, Geoffrey,Lai, Margaret,Smith, Deborah L.,Sullivan, Kelly M.,Schechter, Lee E.,Andree, Terrance H.
experimental part, p. 6980 - 7004 (2009/11/30)
Novel compounds combining a 5-HT1A moiety (3-aminochroman scaffold) and a 5-HT transporter (indole analogues) linked through a common basic nitrogen via an alkyl chain attached at the 1- or 3-position of the indole were evaluated for dual affin
3-AMINO CHOMAN AND 2-AMINO TETRALIN DERIVATIVES
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Page/Page column 91, (2010/02/10)
3-Amino chroman and 2-amino tetralin derivatives and compositions containing such compounds are disclosed. Methods of using the 3-amino chroman and 2-amino tetralin compounds and compositions containing such compounds in the treatment of serotonin disorders, such as depression and anxiety, are also disclosed.
