作者:Stephan A. Ohnmacht、Andrew J. Culshaw、Michael F. Greaney
DOI:10.1021/ol902537d
日期:2010.1.15
The efficient palladium-catalyzed synthesis of a range of substituted 2H-Indazoles via C−H arylation is reported. Reactions are performed on water and provide a direct and mild route toward 2,3-diaryl indazoles of widespread biological significance.
[EN] TRI-CYCLIC PYRAZOLOPYRIDINE KINASE INHIBITORS<br/>[FR] INHIBITEURS DE PYRAZOLOPYRIDINE KINASE TRICYLIQUE
申请人:VERTEX PHARMA
公开号:WO2010011768A1
公开(公告)日:2010-01-28
The present invention relates to compounds of the formula (I), which are useful as inhibitors of protein kinase. The invention also provides pharmaceutically acceptable compositions comprising said compounds and methods of using the compositions in the treatment of various disease, conditions, or disorders. The invention also provides processes for preparing compounds of the inventions.
Solution to the C<sub>3</sub>–Arylation of Indazoles: Development of a Scalable Method
作者:Kallol Basu、Marc Poirier、Rebecca T. Ruck
DOI:10.1021/acs.orglett.6b01456
日期:2016.7.1
3-(Hetero)arylindazoles are important motifs in several biologically active compounds. Mild and flexible palladium-mediated Negishi reaction conditions are reported for the introduction of (hetero)aryl moieties at the 3-position of N(2)-SEM-protected indazoles in high yields. The requisite Zn-species are readily obtained via regioselective deprotonation and subsequent transmetalation. The methodology
Regioselective zincation of indazoles using TMP2Zn and Negishi cross-coupling with aryl and heteroaryl iodides
作者:Andreas Unsinn、Paul Knochel
DOI:10.1039/c2cc17804d
日期:——
The metalation of various SEM-protected functionalized indazoles with TMP2Zn provides 3-zincated indazoles which undergo palladium-catalyzed Negishi cross-couplings in good yields.
用 TMP2Zn 对各种 SEM 保护的官能化吲唑进行金属化,可得到 3-锌化吲唑,这些吲唑在钯催化下发生内吉西交叉耦合反应,产量很高。
Multidirectional Synthesis of Substituted Indazoles via Iridium-Catalyzed C–H Borylation
作者:Scott A. Sadler、Andrew C. Hones、Bryan Roberts、David Blakemore、Todd B. Marder、Patrick G. Steel
DOI:10.1021/acs.joc.5b00452
日期:2015.5.15
In the absence of a steric directing group, iridium-catalyzed. C-H borylation of N-protected indazoles occurs rapidly and selectively at C-3 and the resulting boronate esters can be utilized in a range of downstream conversions. The functional group tolerance of the iridium-catalyzed C-H borylation reaction enables simple and efficient multidirectional syntheses of substituted indazoles to be realized.