نتایج جستجو برای: 6 disubstituted 1

تعداد نتایج: 3240689  

2010
ARUMUGAM SUDHA RAMAR MANIKANDAN CHINNASAMY ARULVASU PAPPU SRINIVASAN

Type 2 diabetes is one of the major life threatening diseases worldwide these cases are progressing at an incremental rate every year and number of research works are going on to control the disease by targeting its enzymes or proteins. The medicinal properties of Vitex negundo and one of its compounds, 1, 2 disubstituted idopyranose (C23H28O12) was checked against diabetes mellitus by molecula...

Journal: :Oriental journal of chemistry 2022

Huisgen’s 1,3-dipolar cycloadditions in water of 6-azidohexan-1-ol dotted with terminal alkynes and catalyzed copper nanoparticles, offering access to 1,2,3-triazoles 1,4-disubstituted. The SARS-CoV-2 coronavirus epidemic is still spreading at a fast rate worldwide. core protease (Mpro) gorgeous mark for anti-COVID-19 agents. Click chemistry synthesis, using has been used prepare the 1,2,3-tria...

A facile and one-pot multicomponent synthesis of novel 1,4-disubstituted-1H-1,2,3-triazoles from alkenes at room temperature is reported. At the first step, in the presence of I2/NaN3 reagents, various alkenes were converted to the corresponding azido iodides and in the next step, the reaction of these compounds with phenylacetylene in the presence of catalytic amount of sodium ascorbate/ CuSO4...

Journal: :Carbohydrate research 2015
András Páhi Katalin Czifrák Katalin E Kövér László Somsák

Reactions of O-peracetylated (α-D-galacto-heptulopyranosyl bromide)onamide and O-perbenzoylated (α-D-gluco-heptulopyranosyl bromide)onamide with ketones in the presence of silver(I) salt promoters gave the corresponding O-peracylated 1',5'-anhydro-D-glycitol-spiro-[1',5]-4-imino-2,2-disubstituted-1,3-dioxolanes. The D-galacto configured starting compounds furnished both spiro epimers, while the...

Journal: :Molecular pharmacology 2004
Hiroshi Tsuneki Yueren You Naoki Toyooka Syota Kagawa Soushi Kobayashi Toshiyasu Sasaoka Hideo Nemoto Ikuko Kimura John A Dani

Nicotinic acetylcholine receptors are key molecules in cholinergic transmission in the nervous system. Because of their structural complexity, only a limited number of subtype-specific agonists and antagonists are available to study nicotinic receptor functions. To overcome this limitation, we used voltageclamp recordings to examine the effects of several frog skin alkaloids on acetylcholine-el...

2015
Hayley Jane Clayton

A series of multidentate N-donor ligands have been synthesised all containing pyridyl and pyridyl/thiazole units and their coordination behaviour is described. The ligands are classified into four types; i) terpyridine containing pyridyl/thiazole ligands (L); ii) pyridyl/thiazole ligands containing a 3,3′-disubstituted bipyridine core. (L); iii) 2,2′-bipyridine containing a crown ether moiety (...

2015
Justyna Szudkowska-Frątczak Mariusz Taczała Piotr Pawluć

A convenient methodology for the highly stereoselective synthesis of unsymmetrical (1E,3E)-1,4-disubstituted 1,3-dienes based on palladium-catalyzed Hiyama cross-coupling reaction of 1-(triethoxysilyl)-substituted buta-1,3-dienes with aryl iodides is reported.

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