Can One Predict Changes from S<sub>N</sub>1 to S<sub>N</sub>2 Mechanisms?
作者:Thanh Binh Phan、Christoph Nolte、Shinjiro Kobayashi、Armin R. Ofial、Herbert Mayr
DOI:10.1021/ja903207b
日期:2009.8.19
lifetimes of benzhydrylium ions in the presence of amines and DMSO. The changefrom S(N)1 to S(N)2 mechanism occurred close to the point where the calculated rate constant for the collapse of the benzhydrylium ions with the amines just reaches the vibrational limit; that is, the concerted S(N)2 mechanism was only followed when it was enforced by the lifetime of the intermediate. The nucleophile-specific
Compounds enhancing antitumor activity of other cytotoxic agents
申请人:Pfizer Inc
公开号:US06130217A1
公开(公告)日:2000-10-10
This invention relates to certain heterocyclic compounds and their pharmaceutically acceptable salts, which are useful for sensitizing multidrug-resistant tumor cells to anticancer agents and multidrug resistant forms of malaria, tuberculosis, leishmania and amoebic dysentery to chemotherapeutants. The compounds and their pharmaceutically acceptable salts are also inhibitors of the active drug transport capability of P-glycoprotein which is encoded by the human MDR1 gene, as well as of certain other related ATP-binding-cassette transporters from eukaryotic and prokaryotic organisms (e.g., pfmdr from Plasmodium falciprum, and murine mdr1 and mdr3 gene products).
[EN] NOVEL SIGMA-2 RECEPTOR BINDERS AND THEIR METHOD OF USE<br/>[FR] NOUVEAUX LIANTS DES RÉCEPTEURS SIGMA 2 ET LEUR PROCÉDÉ D'UTILISATION
申请人:TEMPLE UNIVERSITY-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
公开号:WO2016183150A1
公开(公告)日:2016-11-17
Pharmaceutical compositions of the invention comprise functionalized lactone derivatives having a disease-modifying action in the treatment of diseases associated with dysregulation of sigma-2 receptor activity.
Synthesis of Tertiary<i>sec</i>-Alkylamines by the Addition of Grignard Reagents to<i>N</i>,<i>N</i>-Dialkylformamides Mediated by Ti(O<i>i</i>Pr)<sub>4</sub>and Me<sub>3</sub>SiCl
作者:Olesya Tomashenko、Viktor Sokolov、Alexander Tomashevskiy、Herwig A. Buchholz、Urs Welz-Biermann、Vladimir Chaplinski、Armin de Meijere