New positive allosteric modulators of nicotinic acetylcholine receptor
申请人:Eskildsen Jørgen
公开号:US20130005743A1
公开(公告)日:2013-01-03
The present invention relates to compounds useful in therapy, to compositions comprising said compounds, and to methods of treating diseases comprising administration of said compounds. The compounds referred to are positive allosteric modulators (PAMs) of the nicotinic acetylcholine α7 receptor.
A New Nucleophilic Catalyst for Kinetic Resolution of Racemic<i>sec</i>-Alcohols
作者:Kyu-Sung Jeong、Soong-Hyun Kim、Hyun-Jin Park、Kyoung-Jin Chang、Kwan Soo Kim
DOI:10.1246/cl.2002.1114
日期:2002.11
A new tertiary amine-based nucleophilic catalyst, derived from a simple combination of commercially available compounds, affords good to excellent kinetic resolution of racemic sec-alcohols.
[EN] PYRAZOLOPYRIDINES USEFUL IN THE TREATMENT OF DISORDERS OF THE CENTRAL NERVOUS SYSTEM<br/>[FR] PYRAZOLOPYRIDINES UTILES DANS LE TRAITEMENT DE TROUBLES DU SYSTÈME NERVEUX CENTRAL
申请人:LUNDBECK & CO AS H
公开号:WO2013004617A1
公开(公告)日:2013-01-10
The present invention relates to compounds useful in therapy, to compositions comprising said compounds, and to methods of treating diseases comprising administration of said com- pounds. The compounds referred to are positive allosteric modulators (PAMs) of the nicotinic acetylcholine α7 receptor.
Photochromism of Phenylazopyridines and Its Application to the Fluorescence Modulation of Zinc–Porphyrins
作者:Joe Otsuki、Koichi Narutaki
DOI:10.1246/bcsj.77.1537
日期:2004.8
Several 2- and 3-(phenylazo)pyridine derivatives were prepared. Most of their trans isomers have a large absorption band (∼2 × 104 M−1 cm−1 (1 M = 1 mol dm−3)) around 320 nm and a small absorption band (∼400 M−1 cm−1) around 450 nm. All of these compounds photoisomerize upon irradiation of the shorter (trans-to-cis) and longer (cis-to-trans) wavelength absorption bands. trans Isomers of 3-(phenylazo)pyridines axially coordinate more strongly to Zn–porphyrins than cis isomers, while the opposite is the case for 2-(phenylazo)pyridines, due to steric reasons. These phenylazopyridines quench the fluorescence of Zn–porphyrin upon coordination. These properties were exploited for the light-triggered fluorescence modulation of Zn–porphyrins. Light was irradiated to a mixed solution of phenylazopyridine and Zn–porphyrin to induce photoisomerization of the phenylazopyridine, which underwent association with, or dissociation from, the Zn–porphyrin, resulting in a decrease or increase of Zn–porphyrin fluorescence. For example, the fluorescence intensity of Zn–tetraphenylporphyrin reversibly changed by up to 50%, when 4-methoxy-2-(phenylazo)pyridine was employed.