[EN] AZABICYCLO AND DIAZEPINE DERIVATIVES FOR TREATING OCULAR DISORDERS [FR] DÉRIVÉS D'AZABICYCLO ET DE DIAZÉPINE POUR LE TRAITEMENT DE TROUBLES OCULAIRES
Disclosed herein are KCNQ potassium channels modulators of formula (I)
wherein ring Z
1
, R
1
, p, R
3
, and R
4
are as defined in the specification. Compositions comprising such compounds; and methods for treating conditions and disorders using such compounds and compositions are also described.
The in Situ generation and trapping of some fluorine-substituted ketenes
作者:William R. Dolbier、Suk Kyu Lee、Otto Phanstiel
DOI:10.1016/s0040-4020(01)96116-2
日期:——
nmr indicated the presence of acyl ammonium salts and enolates, potential precursors of the ketenes, but no actual ketene species could unambiguously be detected. The stereochemical results were consistent with the currently accepted steric-based mechanistic rationale for stereochemical determination in ketene cycloadditions.
经由各自的酰氯的脱卤化氢,分别原位产生氟代烯,二氟代烯,甲基氟代烯,三氟甲基氟代烯和苯基氟代烯。在存在环戊二烯的情况下,除了二氟乙烯烯外,均获得了[2 + 2]加合物。在不存在环戊二烯的情况下,低温19 F nmr指示存在烯酮的潜在前体酰基铵盐和烯醇化物,但无法明确检测到实际的烯酮物种。立体化学结果与目前公认的基于乙烯的环烯加成中立体化学测定的基于机理的机理基本一致。
Derivatives of 4,6-diamino-1,2-dihydro-2-phenyl-1,2,4-triazolo[4,3-a]quinoxalin-2H-1-one: potential antagonist ligands for imaging the A2A adenosine receptor by positron emission tomography (PET)
作者:Marcus H. Holschbach、Dirk Bier、Walter Wutz、Wiebke Sihver、M. Schüller、Ray A. Olsson
DOI:10.1016/j.ejmech.2004.12.005
日期:2005.5
in movement disorders urges the development of radiolabeled ligands for imaging those receptors by positronemissiontomography (PET). This study evaluated one class of A(2A)AR antagonists, derivatives of 4-amino-6-benzylamino-1,2-dihydro-2-phenyl-1,2,4-triazolo[4,3-a]quinoxalin-2H-1-o ne, 10a, as agents for imaging brain A(2A)ARs by PET.. Modifications of a literature synthesis of 10a efficiently
3,5-Substituted phenyl galactosides as leads in designing effective cholera toxin antagonists
作者:Daniel D Mitchell、Jason C Pickens、Konstantin Korotkov、Erkang Fan、Wim G.J Hol
DOI:10.1016/j.bmc.2003.12.019
日期:2004.3
aim of developing high-affinity mono and multivalent antagonists of cholera toxin (CT) and Escherichiacoliheat-labileenterotoxin (LT) we are using the galactose portion of the natural receptor ganglioside GM1 as an anchoring fragment in structure-based inhibitor design efforts. In order to establish a better structure-activity relationship for guiding these studies, we designed and prepared a small
New Methodology for the Synthesis of <b>α,α</b>-difluoroketones
作者:Purakkattle Biju
DOI:10.1080/00397910801997637
日期:2008.5.23
Abstract A newmethodology is described for the synthesis of α,α-difluorinated ketones by the addition of organolithium reagents to α,α-difluoro-N-methoxy-N-methyl amides (Weinreb amides).