2051-95-8Relevant articles and documents
The lesser burden borne by o-succinylbenzoate synthase: An easy reaction involving a carboxylate carbon acid [1]
Taylor,Palmer,Gerlt
, p. 5824 - 5825 (2001)
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Novel pyrrol-2(3H)-ones and pyridazin-3(2H)-ones carrying quinoline scaffold as anti-proliferative tubulin polymerization inhibitors
Abdelbaset, Mahmoud S.,Abuo-Rahma, Gamal El-Din A.,Abdelrahman, Mostafa H.,Ramadan, Mohamed,Youssif, Bahaa G.M.,Bukhari, Syed Nasir Abbas,Mohamed, Mamdouh F.A.,Abdel-Aziz, Mohamed
, p. 151 - 163 (2018)
A novel quinolinyl pyrrolone and quinolinyl pyridazinone derivatives has been synthesized and characterized using different spectroscopic and elemental analysis techniques. Most of the target compounds displayed promising antiproliferative activity; In general, the pyrrolone derivatives 4a-f exhibited higher antiproliferative activity than their corresponding pyridazinone. The pyrrolone 4f showed outstanding antiproliferative activity with moderate selectivity against CNS and renal cancer with selectivity ratio of 3.49 and 3.56, respectively. Compound 4e and 5d experienced tubulin polymerization inhibitory activity comparable to that of vincristine while 4c, 4e and 4d showed good BRAF kinase inhibition compared to Erlotinib. Docking of compound 4e into colchicine binding site and biological assay results revealed that these compounds act mainly through tubulin polymerization inhibitory mechanism and can exhibit pre G1 apoptosis and cell cycle arrest at G2/M phase.
Insight into the mechanism and stereochemistry of the transformations of alkyltitanium Ate-Complexes. An enhanced enantioselectivity in the cyclopropanation of the carboxylic esters with titanacyclopropane reagents
Kulinkovich, Oleg G.,Kananovich, Dzmitry G.,Lopp, Margus,Snieckus, Victor
, p. 3615 - 3626 (2014)
The dependence of the stereoselectivity of the cyclopropanation reaction of g,g-diphenyl-g-butyrolactone and carboxylic esters with alkylmagnesium bromides in the presence of titanium(IV) TADDOLates on the structure of the reactants has been examined in d
Design, synthesis, and bioactive screen in vitro of cyclohexyl (E)-4-(Hydroxyimino)-4-phenylbutanoates and their ethers for anti-Hepatitis B Virus agents
Cui, Xinhua,Zhou, Min,Tan, Jie,Wei, Zhuocai,Wei, Wanxing,Luo, Peng,Lin, Cuiwu
, (2019)
A series of oxime Cyclohexyl (E)-4-(hydroxyimino)-4-phenylbutanoates and their ethers were designed, synthesized, and evaluated for anti-hepatitis B virus (HBV) activities with HepG 2.2.15 cell line in vitro. Most of these compounds possessed anti-HBV activities, and among them, compound 4B-2 showed significant inhibiting effects on the secretion of HBsAg (IC50 = 63.85 ± 6.26 μM, SI = 13.41) and HBeAg (IC50 = 49.39 ± 4.17 μM, SI = 17.34) comparing to lamivudine (3TC) in HBsAg (IC50 = 234.2 ± 17.17 μM, SI = 2.2) and HBeAg (IC50 = 249.9 ± 21.51 μM, SI = 2.07). Docking study of these compounds binding to a protein residue (PDB ID: 3OX8) from HLA-A2 that with the immunodominant HBcAg18-27 epitope (HLA-A2.1- restricted CTL epitope) active site was carried out by using molecular operation environment (MOE) software. Docking results showed that behaviors of these compounds binding to the active site in HLA-A protein residue partly coincided with their behaviors in vitro anti-HBV active screening.
Visible-Spectrum Solar-Light-Mediated Benzylic C-H Oxygenation Using 9,10-Dibromoanthracene As an Initiator
Santra, Sourav K.,Szpilman, Alex M.
, p. 1164 - 1171 (2020/12/23)
We report a visible-light-mediated benzylic C-H oxygenation reaction. The reaction is initiated by solar light or the blue LED activation of 9,10-dibromoanthracene in a reaction with oxygen and takes place at ambient temperature and air pressure. Secondary benzylic positions are oxygenated to ketones, while tertiary benzylic carbons are oxygenated to give hydroperoxides. Notably, cumene hydroperoxide is produced in a higher yield and at milder conditions than the currently employed industrial conditions.
Design, synthesis, and biological evaluation of new series of pyrrol-2(3H)-one and pyridazin-3(2H)-one derivatives as tubulin polymerization inhibitors
Abdelbaset, Mahmoud S.,Abdelrahman, Mostafa H.,Bukhari, Syed Nasir Abbas,Gouda, Ahmed M.,Youssif, Bahaa G.M.,Abdel-Aziz, Mohamed,Abuo-Rahma, Gamal El-Din A.
, (2020/12/21)
A potential microtubule destabilizing series of new thirty-five Pyrrol-2-one, Pyridazin-3(2H)-one and Pyridazin-3(2H)-one/oxime derivatives has been synthesized and tested for their antiproliferative activity against a panel of 60 human cancer cell lines. Compounds IVc, IVg and IVf showed a broad spectrum of growth inhibitory activity against cancer cell lines representing renal, cancer of lung, colon, central nervous system, ovary, and kidney. Among them, compound IVg was found to have broad spectrum anti-tumor activity against the tested nine tumor subpanels with selectivity ratios ranging between 0.21 and 3.77 at the GI50 level. In vitro assaying revealed tubulin polymerization inhibition by all active compounds IVc, IVg and IVf. The results of the docking study revealed nice fitting of compounds IVc, IVf, and IVg into CA-4 binding site in tubulin. The three compounds exhibited high binding affinities (ΔGb = ?12.49 to ?12.99 kcal/mol) toward tubulin compared to CA-4 (?8.87 kcal/mol). Investigation of the binding modes of the three compounds IVc, IVf, and IVg revealed that they interacted mainly hydrophobically with tubulin and similar binding orientations to that of CA-4. These observations suggest that tubulin is a possible target for these compounds.
Nickel-Mediated Photoreductive Cross Coupling of Carboxylic Acid Derivatives for Ketone Synthesis**
Brauer, Jan,Quraishi, Elisabeth,Kammer, Lisa Marie,Opatz, Till
, p. 18168 - 18174 (2021/11/30)
A simple visible light photochemical, nickel-catalyzed synthesis of ketones from carboxylic acid-derived precursors is presented. Hantzsch ester (HE) functions as a cheap, green and strong photoreductant to facilitate radical generation and also engages in the Ni-catalytic cycle to restore the reactive species. With this dual role, HE allows for the coupling of a large variety of radicals (1°,2°, benzylic, α-oxy & α-amino) with aroyl and alkanoyl moieties, a new feature in reactions of this type. With both precursors deriving from abundant carboxylic acids, this protocol is a welcome addition to the organic chemistry toolbox. The reaction proceeds under mild conditions without the need for toxic metal reagents or bases and shows a wide scope, including pharmaceuticals and complex molecular architectures.
