نتایج جستجو برای: pyrrolidine

تعداد نتایج: 2347  

2017
Hana Pizova Marketa Havelkova Sarka Stepankova Andrzej Bak Tereza Kauerova Violetta Kozik Michal Oravec Ales Imramovsky Peter Kollar Pavel Bobal Josef Jampilek

Series of twenty-five benzyl (2S)-2-(arylcarbamoyl)pyrrolidine-1-carboxylates was prepared and completely characterized. All the compounds were tested for their in vitro ability to inhibit acetylcholinesterase (AChE) and butyrylcholinesterase (BChE), and the selectivity of compounds to individual cholinesterases was determined. Screening of the cytotoxicity of all the compounds was performed us...

Journal: :Hypertension 2011
Kwan-I Sharon Wu Geert W Schmid-Schönbein

Recent evidence suggests that inflammation in the spontaneously hypertensive rat (SHR) is associated with an uncontrolled matrix metalloproteinase (MMP) activity. We hypothesize that the transcription factor nuclear factor kappa B (NFκB) is overexpressed in the SHR, enhancing its MMP activity and enzymatic cleavage of the β2 adrenergic receptor (β₂AR), thereby diminishing catecholamine-mediated...

2007
Robert B. Felder Yang Yu Yu-Ming Kang Zhi-Hua Zhang Shun-Guang Wei Yi Chu Robert M. Weiss

We investigated the role of nuclear factor B (NFB) in the cytokine-mediated induction of cyclooxygenase-2 activity in the paraventricular nucleus of hypothalamus (PVN), a critical cardiovascular and autonomic center, in rats with heart failure (HF). Sprague–Dawley rats underwent coronary artery ligation to induce HF or sham surgery. HF rats were treated orally for 6 weeks with vehicle (tap wate...

2014
Huili Li Kebo Xie Haiyan Huang Shuning Wang

Nicotine is a main alkaloid in tobacco and is also the primary toxic compound in tobacco wastes. It can be degraded by bacteria via either pyridine pathway or pyrrolidine pathway. Previously, a fused pathway of the pyridine pathway and the pyrrolidine pathway was proposed for nicotine degradation by Agrobacterium tumefaciens S33, in which 6-hydroxy-3-succinoylpyridine (HSP) is a key intermediat...

2002
M. B. Oktay A. X. El-Khadra A. S. Kronfeld P. B. Mackenzie

where sj = dim[Oj ]. In this framework lattice spacing effects can be systematically removed by adding higher dimensional operators to the lattice action. The aim of this work is to design a lattice action such that the coefficients of O(a) and O(a) terms in Eq. (1) can be reduced. For heavy quarks with mQ ≫ ΛQCD, the mass introduces an additional short-distance scale into the problem, and the ...

Journal: :The Journal of antimicrobial chemotherapy 2003
Noboru Uchide Kunio Ohyama

8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....

2011
Alexey Moskalev Mikhail Shaposhnikov

Aging is associated with NF-κB-dependent pro-inflammation. Here we demonstrated that inhibition of NF-κB with pyrrolidine dithiocarbamate increases the median lifespan (13-20%) and the age of 90% mortality (11-14%) in Drosophila melanogaster females and males, respectively.

2014
P. S. Pradeep S. Naveen M. N. Kumara K. M. Mahadevan N. K. Lokanath

In the title compound, C14H17FN2O, the 1,2,3,4-tetra-hydro-pyridine ring of the quinoline moiety adopts a half-chair conformation, while the pyrrolidine ring has an envelope conformation with the central methyl-ene C atom as the flap. The pyrrolidine ring lies in the equatorial plane and its mean plane is normal to the mean plane of the quinoline ring system, with a dihedral angle value of 88.3...

Journal: :Organic letters 2012
Joseph T Paletta Maren Pink Bridget Foley Suchada Rajca Andrzej Rajca

A series of sterically shielded pyrrolidine nitroxides were synthesized, and their reduction by ascorbate (vitamin C) indicate that nitroxide 3, a tetraethyl derivative of 3-carboxy-PROXYL, is reduced at the slowest rate among known nitroxides, i.e., at a 60-fold slower rate than that for 3-carboxy-PROXYL.

Journal: :Journal of the Mass Spectrometry Society of Japan 1994

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