[EN] BRIDGED, BICYCLIC HETEROCYCLIC OR SPIRO BICYCLIC HETEROCYCLIC DERIVATIVES OF PYRAZOLO[1,5-A]PYRIMIDINES, METHODS FOR PREPARATION AND USES THEREOF [FR] DÉRIVÉS HÉTÉROCYCLIQUES BICYCLIQUES PONTÉS OU HÉTÉROCYCLIQUES BICYCLIQUES SPIRO DE PYRAZOLO[1,5-A]PYRIMIDINES, LEURS PROCÉDÉS DE PRÉPARATION ET LEURS UTILISATIONS
Dramatic Effect of Solvent Hydrogen Bond Basicity on the Regiochemistry of S<sub>N</sub>Ar Reactions of Electron-Deficient Polyfluoroarenes
作者:Xiaolun Wang、Edward J. Salaski、Dan M. Berger、Dennis Powell
DOI:10.1021/ol902353t
日期:2009.12.17
It was found that solvent hydrogen bond basicity (SHBB) significantly affects the regiochemistry of the SNAr reaction between secondary amines and activated polyfluoroarenes. A plausible mechanism involving a six-membered transition state is invoked for the formation of an ortho-substituted isomer, which is likely organized by a hydrogen bond. Evidence for this hypothesis is presented, and a regioselective
发现溶剂氢键碱性(SHBB)显着影响仲胺和活化的多氟芳烃之间的S N Ar反应的区域化学。涉及六元过渡态的合理机制被用于形成邻位取代的异构体,该异构体很可能是由氢键组成的。提供了该假设的证据,并且已经开发了活化的多氟芳烃的区域选择性胺化反应。
Bridged, Bicyclic Heterocyclic or Spiro Bicyclic Heterocyclic Derivatives of Pyrazolo[1, 5-A]Pyrimidines, Methods for Preparation and Uses Thereof
申请人:Levin Jeremy Ian
公开号:US20100029657A1
公开(公告)日:2010-02-04
Compounds of formula A:
and pharmaceutically acceptable salts thereof are described, which selectively inhibit Raf kinase activity and are useful for treating disorders mediated by Raf kinases.
BRIDGED, BICYCLIC HETEROCYCLIC OR SPIRO BICYCLIC HETEROCYCLIC DERIVATIVES OF PYRAZOLO[1,5-A]PYRIMIDINES, METHODS FOR PREPARATION AND USES THEREOF
申请人:Wyeth LLC
公开号:EP2271649A1
公开(公告)日:2011-01-12
[EN] BRIDGED, BICYCLIC HETEROCYCLIC OR SPIRO BICYCLIC HETEROCYCLIC DERIVATIVES OF PYRAZOLO[1,5-A]PYRIMIDINES, METHODS FOR PREPARATION AND USES THEREOF<br/>[FR] DÉRIVÉS HÉTÉROCYCLIQUES BICYCLIQUES PONTÉS OU HÉTÉROCYCLIQUES BICYCLIQUES SPIRO DE PYRAZOLO[1,5-A]PYRIMIDINES, LEURS PROCÉDÉS DE PRÉPARATION ET LEURS UTILISATIONS
申请人:WYETH CORP
公开号:WO2009108838A8
公开(公告)日:2009-11-12
Indazolylpyrazolopyrimidine as Highly Potent B-Raf Inhibitors with in Vivo Activity
作者:Xiaolun Wang、Dan M. Berger、Edward J. Salaski、Nancy Torres、Minu Dutia、Cilien Hanna、Yongbo Hu、Jeremy I. Levin、Dennis Powell、Donald Wojciechowicz、Karen Collins、Eileen Frommer、Judy Lucas
DOI:10.1021/jm1007566
日期:2010.11.11
Novel indazolylpyrazolo[1,5-a]pyrimidine analogues have been prepared and found to be extremely potent type I B-Raf inhibitors. The lead compound shows good selectivity against a panel of 60 kinases, possesses a desirable pharmacokinetic profile, and demonstrates excellent in vivo antitumor efficacy in B-Raf mutant xenograft models.