نتایج جستجو برای: substituted indole

تعداد نتایج: 49164  

2013
John D. Bussell Michael Reichelt Andrew A.G. Wiszniewski Jonathan Gershenzon Steven M. Smith

Secondary metabolites derived from benzoic acid (BA) are of central importance in the interactions of plants with pests, pathogens, and symbionts and are potentially important in plant development. Peroxisomal b-oxidation has recently been shown to contribute to BA biosynthesis in plants, but not all of the enzymes involved have been defined. In this report, we demonstrate that the peroxisomal ...

2013
Uday Kumar

A novel synthetic methodology for the synthesis of Bis(indolyl)methanes by using catalytic amount of ferric triflate was described Introduction Bis(indolyl)methanes consists two substituted indole units in the molecule. Bis indole derivatives are reported to exhibit a wide spectrum of pharmacological activities such as cytotoxic, antitumor antimicrobial [1] and antiactivities. [2] For the past ...

2013
Won-Il Lee Jong-Wha Jung Jaehoon Sim Hongchan An Young-Ger Suh

A generally applicable and high-yielding protocol for the synthesis of 3-substituted indole derivatives is described. Key features include microwave-assisted intramolecular areneealkene coupling of o-iodoanilino enamines, and expedient synthesis of o-iodoanilino enamine substrates employing N,O-acetal TMS ethers, which could be conveniently derived from the corresponding amides. Our unique proc...

Journal: :Organic & biomolecular chemistry 2012
Bo Jiang Xue Wang Meng-Yuan Li Qiong Wu Qin Ye Hai-Wei Xu Shu-Jiang Tu

A series of new poly-functionalized two-carbon-tethered fused acridine/indole pairs were synthesized via Brønsted acid-promoted domino reactions between indoline-2,3-dione and C(2)-tethered indol-3-yl enaminones. The reactions were further expanded to prepare C-tethered fused acridine/pyridine pairs, N-substituted amino acids, N-cyclopropyl and N-aryl substituted fused acridine derivatives, as ...

Journal: :Organic & biomolecular chemistry 2013
Nigel S Simpkins Ilias Pavlakos Michael D Weller Louise Male

A strategy for the synthesis of members of the prenylated indole alkaloid family is described, which involves a radical cascade process of an appropriately substituted diketopiperazine (DKP) core structure. Several approaches to the generation of the initial radical were explored, with the most successful involving treatment of a sulfenyl substituted DKP under classical reductive conditions by ...

Journal: :Asia-Pacific Journal of Chemical Engineering 2009

Journal: :Bioorganic & medicinal chemistry 2014
Dezhi Yang Peng Wang Jianzhen Liu Hualu Xing Yang Liu Wencheng Xie Guisen Zhao

Herein, we describe the discovery and synthesis of a new series of 1,2,4,7-tetra-substituted indole derivatives as novel AKT inhibitors by optimization of a weak hit methyl 4-(2-aminoethoxy)-1H-indole-2-carboxylate (1). Both representative compounds 6a and 6o exhibited the most potent inhibitory activities against AKT1, with inhibition rates of 72.5% and 78.6%, respectively, at concentrations o...

2011
Li-qin Wang Liu-shui Yan Gang Liu

The title compound, C(29)H(23)F(6)NO(2)S, a member of a new family of photochromic diaryl-ethene compounds having an unsymmetrically substituted hexa-fluoro-cyclo-pentene unit, displays dihedral angles between the indole and thio-phene rings of 52.5 (4)°, and between the indole ring and the planar C-C=C-C unit of the cyclopentene ring of 53.8 (6)°. The distance between the potentially reactive ...

Journal: :Drug discoveries & therapeutics 2012
Peng Wang Jianzhen Liu Hualu Xing Yang Liu Wencheng Xie Guisen Zhao

A new series of 5-(indole-2-yl)-3-substituted 1,2,4-oxadiazoles were synthesized and evaluated for their anticancer activities. Structures of the compounds were confirmed by spectroscopic methods. Structural modifications were done to improve the antiproliferative activity of compound 1. The results indicated that a benzyloxyl substituent on the C-4 position was better than a methyl substituent...

Journal: :Plant physiology 1987
P Schramm T Rausch W Hilgenberg

Indole-3-ethanol oxidase (IEt oxidase) from Phycomyces blakesleeanus Bgff.(P.b.) is a 56 kD polypeptide as determined by gel filtration. The reaction products are indole-3-acetaldehyde (IAAld) and, possibly, H(2)O(2). Enzyme activity (33-45% ammonium sulfate fraction) shows a broad pH optimum and simple Michaelis-Menten kinetics (K(m) 7 micromolar, Hill coefficient 0.95). Flavin adenine dinucle...

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