[EN] HETEROCYCLICALKYL DERIVATIVE COMPOUNDS AS SELECTIVE HISTONE DEACETYLASE INHIBITORS AND PHARMACEUTICAL COMPOSITIONS COMPRISING THE SAME [FR] COMPOSÉS DÉRIVÉS D'ALKYLE HÉTÉROCYCLIQUES À UTILISER EN TANT QU'INHIBITEURS DE L'HISTONE DÉSACÉTYLASE ET COMPOSITIONS PHARMACEUTIQUES LES COMPRENANT
3‘-Chloro-3α-(diphenylmethoxy)tropane But Not 4‘-Chloro-3α- (diphenylmethoxy)tropane Produces a Cocaine-like Behavioral Profile
作者:Richard H. Kline、Sari Izenwasser、Jonathan L. Katz、David B. Joseph、Wayne D. Bowen、Amy Hauck Newman
DOI:10.1021/jm950782k
日期:1997.3.1
more potent than benztropine and equipotent to or slightly less potent than their previously reported para-substituted homologs in inhibiting [3H]WIN 35,428 binding. However, these same meta-substituted analogs were typically less potent than the 4'-substituted analogs in inhibiting [3H]dopamineuptake. Ortho-substituted analogs were generally less potent in both binding and inhibition of uptake at the
The present invention provides a fused ring compound of the following formula [I]
1
wherein each symbol is as defined in the specification, a pharmaceutically acceptable salt thereof, and a therapeutic agent for hepatitis C, which contains this compound. The compound of the present invention shows an anti-hapatitis C virus (HCV) action based on the HCV polymerase inhibitory activity, and is useful as a therapeutic agent or prophylactic agent for hepatitis C.
Kinetics of the Solvolyses of Fluoro-Substituted Benzhydryl Derivatives: Reference Electrofuges for the Development of a Comprehensive Nucleofugality Scale
作者:Christoph Nolte、Herbert Mayr
DOI:10.1002/ejoc.200901400
日期:2010.3
A series of m-fluoro-substituted benzhydrylchlorides, bromides, mesylates, and tosylates 1-X to 5-X were prepared and subjected to solvolysis reactions in various solvents. The observed first-order rate constants k s (25 °C) were found to follow the correlation equation log k s (25 °C) = s f (N f + E f ), which allowed us to determine the electrofugality parameters E f for these destabilized benzhydrylium
制备了一系列间氟取代的二苯甲基氯化物、溴化物、甲磺酸盐和甲苯磺酸盐 1-X 至 5-X,并在各种溶剂中进行溶剂分解反应。发现观察到的一阶速率常数 ks (25 °C) 遵循相关方程 log ks (25 °C) = sf (N f + E f ),这使我们能够确定这些不稳定的电离参数 E f二苯甲基阳离子和一系列离去基团/溶剂组合的离核参数 N f , sf 。
Lewis Acid‐Catalyzed Diastereoselective C−C Bond Insertion of Diazo Esters into Secondary Benzylic Halides for the Synthesis of α,β‐Diaryl‐β‐haloesters
作者:Fei Wang、Yoshihiro Nishimoto、Makoto Yasuda
DOI:10.1002/anie.202204462
日期:2022.7.18
Lewis acid-catalyzed carbon–carbon bond insertion of α-diazo esters into secondary benzylic halides is reported. Herein, the carbon chain elongation of acyclic benzylic halides and ring expansion in cyclic versions were realized to afford α,β-diaryl-β-halo carbonyl compounds with excellent diastereoselectivity. Computational study charted a specific mechanism involving the Lewis acid-promoted cleavage/re-formation
formidable challenge. Accordingly, the development of simple, efficient, and economic catalytic systems is the ideal pursuit for chemists. Herein, we report an enantioselective radical photoaddition to ketones through a Lewis acid-enabled photoredox catalysis wherein the in situ formed chiral N,N′-dioxide/Sc(III)–ketone complex serves as a temporary photocatalyst to trigger single-electron transfer oxidation