A Closer Look at the Bromine–Lithium Exchange with tert-Butyllithium in an Aryl Sulfonamide Synthesis
摘要:
A practical protocol for the one-pot synthesis of various aryl sulfonamides, notably of pyridine-core-substituted 7-azaindolyl sulfonamides, Is described. A key step is the well-known bromine-lithium exchange reaction of an aryl bromide with tert-butyllithium (t-BuLi). Differing from the common practice to use 2 or more equiv of organolithium, the exact amount of t-BuLi needed for a sufficient exchange reaction Is determined for each aryl bromide in a GC-MS-assisted experiment.
Halogen Bond-Assisted Electron-Catalyzed Atom Economic Iodination of Heteroarenes at Room Temperature
作者:Imran Kazi、Somraj Guha、Govindasamy Sekar
DOI:10.1021/acs.joc.9b00174
日期:2019.6.7
halogen bond-assisted electron-catalyzed iodination of heteroarenes has been developed for the first time under atom economic condition at room temperature. The iodination is successful with just 0.55 equiv of iodine and 0.50 equiv of peroxide. The kinetic study indicates that the reaction is elusive in the absence of a halogen bond between the substrate and iodine. The formation of a halogen bond, its
This disclosure provides compounds and methods of using those compounds to treat metabolic disorders and hyperproliferative disorders, including administration of the compounds in conjunction with hormone receptor antagonists.
[EN] VIRAL POLYMERASE INHIBITORS<br/>[FR] INHIBITEURS DE POLYMERASE VIRALE
申请人:BOEHRINGER INGELHEIM INT
公开号:WO2009018656A1
公开(公告)日:2009-02-12
Compound of Formula I: wherein, R2, R5 and R6 are defined herein, are useful as inhibitors of the hepatitis C virus NS5B polymerase
化合物的化学式I:其中,R2、R5和R6如本文所定义,可用作乙型肝炎病毒NS5B聚合酶的抑制剂。
HETEROCYCLIC COMPOUNDS AND METHODS OF USE
申请人:Medivation Technologies, Inc.
公开号:US20150065519A1
公开(公告)日:2015-03-05
This disclosure provides compounds and methods of using those compounds to treat metabolic disorders and hyperproliferative disorders, including administration of the compounds in conjunction with hormone receptor antagonists.
[EN] HETEROCYCLIC COMPOUNDS AND METHODS OF USE<br/>[FR] COMPOSÉS HÉTÉROCYCLIQUES ET LEURS MÉTHODES D'UTILISATION
申请人:CHAKRAVARTY SARVAJIT
公开号:WO2015031650A1
公开(公告)日:2015-03-05
This disclosure provides compounds and methods of using those compounds to treat metabolic disorders and hyperproliferative disorders, including administration of the compounds in conjunction with hormone receptor antagonists. Compounds of the invention may also find use in treating cancer. Presented herein are novel compounds bearing a perhaloalkylsulfonamide moiety. Such compounds, in addition to being highly effective SREBP inhibitors, are also unexpectedly highly bioavailable in vivo. Heteroaromatic compounds bearing sulfonamide groups are prone to several ionic states, based on the inherent pKa values.