13523-92-7Relevant academic research and scientific papers
Synthesis, anticancer and antioxidant properties of new indole and pyranoindole derivatives
Iacopetta, Domenico,Catalano, Alessia,Ceramella, Jessica,Barbarossa, Alexia,Carocci, Alessia,Fazio, Alessia,La Torre, Chiara,Caruso, Anna,Ponassi, Marco,Rosano, Camillo,Franchini, Carlo,Sinicropi, Maria Stefania
, (2020)
The indole scaffold has been recognized, over the years, as a model for the synthesis of compounds with anticancer activity by dint of its substantiated ability to act via multiple mechanisms, which also involves the inhibition of enzymes engaged in DNA replication. In this regard, a new series of indole and pyranoindole derivatives have been prepared, some of which showed good antitumor activity and proved their inhibitory effects on the tubulin target. The anticancer activity of the newly synthesized compounds has been evaluated on breast cancer cell lines, as MCF-7 and MDA-MB231, cervical cancer cells line HeLa and Ishikawa endometrial cancer cell line. Among the compounds under study, 7 exhibited a good antitumor activity on HeLa cell line (IC50 = 3.6 ± 0.5), leading to cell death by apoptosis due to the inhibition of tubulin polymerization, which demonstrated that the compound can explicate its function in a similar way to Vinblastine, a well-known inhibitor of tubulin polymerization. The data were also confirmed by in silico assays. No cytotoxicity against normal cells has been detected. Furthermore, in order to investigate the antioxidant properties, DPPH and ABTS tests were performed, together with fluorescence assays on 3T3-L1 cells. All our findings taken together led us to consider compound 7 a favourable candidate for the battle against cancer.
Discovery of a Class of Potent and Selective Non-competitive Sentrin-Specific Protease 1 Inhibitors
Brand, Michael,Frasson, David,Gall, Flavio,Hunziker, Lukas,Kroslakova, Ivana,Lindenmann, Urs,Riedl, Rainer,Sievers, Martin
, (2020/03/24)
Sentrin-specific proteases (SENPs) are responsible for the maturation of small ubiquitin-like modifiers (SUMOs) and the deconjugation of SUMOs from their substrate proteins. Studies on prostate cancer revealed an overexpression of SENP1, which promotes prostate cancer progression as well as metastasis. Therefore, SENP1 has been identified as a novel drug target against prostate cancer. Herein, we report the discovery and biological evaluation of potent and selective SENP1 inhibitors. A structure-activity relationship (SAR) of the newly identified pyridone scaffold revealed allosteric inhibitors with very attractive in vitro ADMET properties regarding plasma binding and plasma stability for this challenging target. This study also emphasizes the importance of biochemical mode of inhibition studies for de novo designed inhibitors.
Bimetallic photoredox catalysis: Visible light-promoted aerobic hydroxylation of arylboronic acids with a dirhodium(ii) catalyst
Campbell, Michael G.,Chuang, Gary Jing,Liu, Ming-Lun,Miura-Stempel, Emily,Tu, Jing-Wen,Yang, Hsiang-Ming
, p. 2040 - 2047 (2020/03/13)
We report the use of a rhodium(II) dimer in visible light photoredox catalysis for the aerobic oxidation of arylboronic acids to phenols under mild conditions. Spectroscopic and computational studies indicate that the catalyst Rh2(bpy)2(OAc)4 (1) undergoes metal-metal to ligand charge transfer upon visible light irradiation, which is responsible for catalytic activity. Further reactivity studies demonstrate that 1 is a general photoredox catalyst for diverse oxidation reactions.
Identification of an Oxalamide Ligand for Copper-Catalyzed C?O Couplings from a Pharmaceutical Compound Library
Chan, Vincent S.,Krabbe, Scott W.,Li, Changfeng,Sun, Lijie,Liu, Yue,Nett, Alex J.
, (2019/04/30)
A typical pharmaceutical compound library is stocked with molecular diversity and could provide a platform for the discovery of new ligand structures. Herein, we describe the use of this approach in combination with high throughput screening to identify N,N’-bis(thiophene-2-ylmethyl)oxalamide as a ligand that is generally effective for copper-catalyzed C?O cross-couplings to prepare both biarylethers as well as phenols under mild conditions.
HISTONE DEMETHYLASE INHIBITORS
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, (2016/04/09)
The present invention relates generally to compositions and methods for treating cancer and neoplastic disease. Provided herein are substituted pyrido[3,4-d]pyrimidin-4-one derivative compounds and pharmaceutical compositions comprising said compounds. The subject compounds and compositions are useful for inhibition of histone demethylase. Furthermore, the subject compounds and compositions are useful for the treatment of cancer, such as prostate cancer, breast cancer, bladder cancer, lung cancer and/or melanoma and the like.
Continuous-flow synthesis of functionalized phenols by aerobic oxidation of grignard reagents
He, Zhi,Jamison, Timothy F.
supporting information, p. 3353 - 3357 (2014/04/03)
Phenols are important compounds in chemical industry. An economical and green approach to phenol preparation by the direct oxidation of aryl Grignard reagents using compressed air in continuous gas-liquid segmented flow systems is described. The process tolerates a broad range of functional groups, including oxidation-sensitive functionalities such as alkenes, amines, and thioethers. By integrating a benzyne-mediated in-line generation of arylmagnesium intermediates with the aerobic oxidation, a facile three-step, one-flow process, capable of preparing 2-functionalized phenols in a modular fashion, is established. Putting on airs: Aerobic oxidation of (hetero)aryl Grignard reagents using compressed air proceeds with a gas-liquid continuous-flow system, thus enabling preparation of fucntionalized phenols. By integrating an in-line generation of ArMgBr intermediates with the aerobic oxidation, ortho-functionalized phenols can be assembled. The method demonstrates good functional-group (FG) compatibility, mild reaction conditions, and short reaction times.
Pd/C-mediated depropargylation of propargyl ethers/amines in water
Rambabu,Bhavani,Swamy, Nalivela Kumara,Basaveswara Rao,Pal, Manojit
, p. 1169 - 1173 (2013/04/10)
Propargyl ethers and amines are effectively depropargylated to the parent alcohols or amines via a C-O/C-N bond cleavage catalyzed by 10% Pd/C in water. This simple, facile, and inexpensive methodology could be utilized for the selective removal of propargyl groups from a variety of aryl ethers and amines.
Indolyne experimental and computational studies: Synthetic applications and origins of selectivities of nucleophilic additions
Im, G-Yoon J.,Bronner, Sarah M.,Goetz, Adam E.,Paton, Robert S.,Cheong, Paul H.-Y.,Houk,Garg, Neil K.
scheme or table, p. 17933 - 17944 (2011/02/26)
Efficient syntheses of 4,5-, 5,6-, and 6,7-indolyne precursors beginning from commercially available hydroxyindole derivatives are reported. The synthetic routes are versatile and allow access to indolyne precursors that remain unsubstituted on the pyrrole ring. Indolynes can be generated under mild fluoride-mediated conditions, trapped by a variety of nucleophilic reagents, and used to access a number of novel substituted indoles. Nucleophilic addition reactions to indolynes proceed with varying degrees of regioselectivity; distortion energies control regioselectivity and provide a simple model to predict the regioselectivity in the nucleophilic additions to indolynes and other unsymmetrical arynes. This model has led to the design of a substituted 4,5-indolyne that exhibits enhanced nucleophilic regioselectivity.
Indolynes as electrophilic indole surrogates: Fundamental reactivity and synthetic applications
Bronner, Sarah M.,Bahnck, Kevin B.,Garg, Neil K.
supporting information; experimental part, p. 1007 - 1010 (2009/07/18)
A mild method to access a variety of substituted indole derivatives has been developed. The strategy relies on the generation of highly reactive indolyne intermediates, which function as electrophilic indole surrogates.
Therapeutic diphenyl ether ligands
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Page/Page column 35, (2010/10/20)
This invention is directed to compounds of formula Ia, Ib or Ic and to pharmaceutical compositions thereof: or a prodrug thereof and a pharmaceutically acceptable carrier, wherein the R groups are defined in the specification; and, in which the dashed line represents an optional double bond. The invention is also directed to methods of treating, diagnosing, and preventing disorders of the central nervous system that are associated with 5HT receptors, including obesity, attention deficit disorder, migraine, depression, epilepsy, anxiety, Alzheimer's disease, withdrawal from drug abuse, pain, schizophrenia, stress-related disorders, panic disorder, sleep disorders, phobias, obsessive compulsive disorder, post-traumatic-stress syndrome, immune system depression, stress-induced gastrointestinal dysfunction, stress-induced cardiovascular dysfunction, and sexual dysfunction.
