نتایج جستجو برای: pyrrolo imidazole

تعداد نتایج: 8269  

Journal: :The Journal of organic chemistry 2005
Teresa M V D Pinho e Melo Maria I L Soares António M d'A Rocha Gonsalves José A Paixão Ana Matos Beja Manuela Ramos Silva

1-Azafulvenium methides, generated from pyrrolo[1,2-c]thiazole-2,2-dioxides' thermal extrusion of sulfur dioxide, led to the synthesis of functionalized pyrroles. The intramolecular trapping of these transient 8pi 1,7-dipoles in pericyclic reactions, namely sigmatropic [1,8]H shifts and 1,7-electrocyclization, allowed the synthesis of N-vinylpyrroles and C-vinylpyrroles which, under flash vacuu...

2011
Anju Pandey Milind Mohan Naik

This study presents antibacterial activity of several organic metabolites produced by a fish pathogen, Acinetobacter sp. strain An 2, from marine ecosystem of Goa. Cell extract demonstrated stronger inhibitory effects on Gram negative bacteria as compared to common antibiotics. GC-MS analysis of crude cell extract revealed presence of potential antimicrobials (butylated hydroxytoluene, phenol, ...

Journal: :Applied Water Science 2023

Abstract A straightforward ferrocyanide immobilization on the surface of graphene oxide (GO) was conducted for rapid and efficient adsorption capacity lanthanum praseodymium from an aqueous solution. The GO mixed with 1-methyl imidazole in presence epichlorohydrin to form GO-imidazole-Cl thereafter suspended a potassium solution fabricate GO-imidazole-FeCN. prepared materials were characterized...

Journal: :Physical chemistry chemical physics : PCCP 2011
Jorge Alí-Torres Luis Rodríguez-Santiago Mariona Sodupe

The imidazole ring is part of the lateral chain of histidine. One of the main features of this amino acid is the ability to coordinate copper, especially Cu(2+), because of the intermediate base nature of its imidazole ring, which has a great biological relevance. Proteins such as cytochrome c oxidase, a crucial enzyme in the respiratory chain, and β-amyloid peptide, implicated in the pathology...

Journal: :International journal of oncology 2015
Zhenxing Liu Yingzheng Wang Shuan Zhao Jingyou Zhang Yi Wu Shenming Zeng

Imidazole, an organic alkaloid, is an important pharmacophore in drug discovery. Anti-neoplastic potential of imidazole derivatives has been documented in several studies; however, mechanisms by which tumor cells respond to these stimuli remain to be elucidated. Autophagy and apoptosis have key roles in tumorigenesis and tumor treatment. In this study, we systematically examined autophagic even...

Journal: :Acta crystallographica. Section C, Crystal structure communications 2004
David J Nielsen Claudio Pettinari Brian W Skelton Allan H White

Low-temperature studies of the simple variously substituted imidazole types 4-phenyl-1H-imidazole, C9H8N2, 1-benzyl-1Himidazole, C10H10N2, and 1-mesityl-1H-imidazole, C12H14N2, extend comparisons between parent imidazole species and their derivatives, the pronounced double-bond localization opposite the substituted N atom common to simple neutral species being redistributed aromatically on prot...

Journal: :Blood 1971
J W Davis P E Phillips

Since imidazole buffers have been used in platelet function tests and the compound has been reported to alter several biochemical activities of platelets, it seemed important to determine whether imidazole influenced platelet aggregation. ADP-induced, collagen-induced, and norepinephrine-induced platelet aggregations were tested in platelet-rich plasma by turbidimetric techniques. Glass beadind...

Journal: :Advanced Synthesis & Catalysis 2021

Silver complexes with 5-(4-(tert-butyl)-1H-imidazol-1-yl)-imidazo[1,5-a]pyridin-3-ylidene ligands were synthesized as metal-imidazole acid-base cooperative catalysts. Single crystal XRD analysis revealed that the silver atom was located in vicinity of imidazole ring and cationic formed dimers through coordination between metal pendant. These served catalysts for cyclization alkyne-tethered carb...

Journal: :Chemical communications 2010
Taihua Li Rongzhan Fu Hyun Gyu Park

Novel signal-on fluorescent aptasensors based on unlabeled aptamers and pyrrolo-dC have been developed for the detection of several targets with great specificity and sensitivity.

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