نتایج جستجو برای: indole derivatives
تعداد نتایج: 114196 فیلتر نتایج به سال:
Highly efficient approaches to obtain structurally diverse fluorinated indole derivatives have been realized through the Ag-catalyzed one-pot cyclization/fluorination of 2-alkynylanilines in the presence of NFSI or Selectfluor.
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 ...
The dicationic guest 2,7-dimethyldiazaphenanthrenium forms a fluorescent inclusion complex with the cucurbit[8]uril host, which can be used to effectively bind and detect indole derivatives, such as serotonin and tryptophan.
The Harvard community has made this article openly available. Please share how this access benefits you. Your story matters. opening of episulfonium ions with indole derivatives by means of stabilizing non-covalent interactions.
An efficient synthesis of some novel coumarin derivatives via 1, 4- Michael addition of indole to coumarin chalcones catalyzed by cellulose sulphonic acid (CSA) under solvent free conditions is described. The corresponding Michael addition products were obtained in good to excellent yield. The synthesized compounds were screened for their antibacterial activity against E. coli, S. aureus and an...
An efficient synthesis of some novel coumarin derivatives via 1, 4- Michael addition of indole to coumarin chalcones catalyzed by cellulose sulphonic acid (CSA) under solvent free conditions is described. The corresponding Michael addition products were obtained in good to excellent yield. The synthesized compounds were screened for their antibacterial activity against E. coli, S. aureus and an...
Text for Table of Contents: 6-Indolyldihydropyridinones and 5-indolylmethylenebutyrolactams were prepared from homoallyl amine derivatives resulting the diastereoselective indium-promoted allylation with allyl bromide ethyl 2-(bromomethyl)acrylate, respectively, N-tert-butanesulfinyl imines derived indole-2 3- carbaldehydes.
A variety of intercellular signal molecules, such as, the most studied N-acyl-homoserinelactones (AHLs) in Gram-negative bacteria, autoinducer (AI-2) in both Gram-negative and Gram-positive bacteria, and signal peptides in Gram-positive bacteria, have been discovered over the last 20 years. Although it has been known for over 100 years that many bacteria produce indole, the real biological role...
Five novel derivatives of N-(9,10-dihydro-9,10-dioxoanthracenyl)-1H-indole-2-carboxamide were synthesized and their lipid-lowering effects studied in hyperlipidemic rats. Fusion of the anthraquinone derivatives at high temperature with 5-indole-2-carbonyl chloride, followed by recrystallization from chloroform/methanol gave the desired compounds in excellent yields. Compounds 1 to 5 at a non-to...
Synthesis of biologically active novel bis Schiff bases, bis hydrazone and bis guanidine derivatives
A number of bis Schiff′s bases 3a-d have been synthesized by condensation of 2,4,8,10 tetraoxaspiro[5,5]undecane 3,9dipropanamine 1 with furfural, indole-3-aldehyde, 2-acetylpyridine, 4-acetylpyridine and 5a-c by condensation of 1,4-bis (3-aminopropyl) piperazine 4 with indole-3-aldehyde, 2-acetylpyridine, 4-acetylpyridine, in high yields by using microwave irradiation. Bis hydrazone derivative...
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