نتایج جستجو برای: 2 3 indolyl 4

تعداد نتایج: 3788933  

1998
Anil K. Singh Joydip Das

Two new long chain tryptophan compounds viz [3-(indolyl-30)-2-(N-octadecamido)]-methylpropionate (4) and sodium-[3-(indolyl-30)-2(N-octadecamido)]-propionate (5) have been prepared and their ̄uorescence properties ( max, f, f, rss, quenching) have been investigated in homogeneous media and in phosphatidyl choline vesicles. Both 4 and 5 in a membrane mimicking system of phosphatidylcholine vesic...

Journal: :Journal of natural products 1997
J C Jaton K Roulin K Rose F M Sirotnak A Lewenstein G Brunner C P Fankhauser U Burger

The pollen of rye (Secale cereale) was shown to contain a biologically highly active family of glycosides called the secalosides. Secalosides A and B (1), both of molecular formula C46H51-NO24, were found to be epimeric esters of (2-oxo-3-indolyl)acetic acid (4). They are made up, in addition to this heterocyclic aglycon I (4), of three hexose building blocks and a carbocyclic aglycon II, which...

Kurosh Rad-Moghadam Shaghayegh Gholizadeh

An efficient and convenient protocol for synthesis of 3-hydroxy-3-indolyl-2-oxindoles and 3,3-diindolyl-2-oxindoles is presented here. The syntheses were achieved selectively under catalysis of LiClO4 whereby the products were obtained purely.

Journal: :Crystals 2023

The hit compound 1,2,4-triazolo[4’,3’:2,3]pyridazino[4,5-b]indole 3 was synthesized from the reflux of 4-amino-5-indolyl-1,2,4-triazole-3-thione 1 with 4′-bromoacetophenone 2 in methanol catalyzed by concentrated HCl and desired final molecule obtained recrystallization methanol. suggested structures compounds based on spectral characterizations were confirmed X-ray single crystal diffraction a...

Journal: :Molecules 2017
Adriana Grozav Ioan-Dan Porumb Luiza Ioana Găină Lorena Filip Daniela Hanganu

Newly synthesized 2-(2-((1H-indol-5yl)methylene)-hydrazinyl)-thiazole derivatives were evaluated for their in vitro cytotoxicity on two carcinoma cell lines A2780 and HeLa. Significant cytotoxic activity for 2-(2-((1H-indol-5-yl)methylene)hydrazinyl)-4-methylthiazole (1) and 2-(2-((1H-indol-5-yl)methylene)hydrazinyl)-4-phenylthiazole (3), on both A2780 [IC50: 11.6 μM (1), and 12.4 μM (3)] and H...

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 ...

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