Les α-oxocetene dithioacetals 存在未取代选择性的反应性有机-Cu-Li 倾倒导致 des β-烷硫基 α-β-烯酮。在检查les effets de la structure, du coordinat de Cu transferable, du reactif Cu et du solvant sur la chimio- et la立体选择性德拉反应
[EN] JAK2 INHIBITORS AND THEIR USE FOR THE TREATMENT OF MYELOPROLIFERATIVE DISEASES AND CANCER<br/>[FR] INHIBITEURS DE JAK2 ET LEUR UTILISATION POUR LE TRAITEMENT DE MALADIES MYÉLOPROLIFÉRATIVES ET DU CANCER
申请人:BRISTOL MYERS SQUIBB CO
公开号:WO2011028864A1
公开(公告)日:2011-03-10
The present invention provides compounds of formula (I) and pharmaceutically acceptable salts thereof. The formula (I) compounds inhibit tyrosine kinase activity of JAK2, thereby making them useful as antiproliferative agents for the treatment of cancer and other diseases.
α-Oxoketene Dithioacetals Mediated Benzoannelation of Aromatic Heterocycles: an Efficient Regiocontrolled Synthesis of Highly Substituted and Polycyclic Benzo[b]thiophenes
作者:J.R. Suresh、Okram Barun、H. Ila、H. Junjappa
DOI:10.1016/s0040-4020(00)00722-5
日期:2000.10
An efficient regiocontrolled synthesis of highly substituted and complex polycyclic benzo[b]thiophenes has been developed via our benzoannelation strategy involving conjugate addition–displacement on a variety of α-oxoketenedithioacetals by carbanions derived from 2- and 3-cyanomethylthiophenes followed by acid induced cyclization of the resulting conjugate adducts.
通过我们的苯甲酰化策略,开发了一种高效的区域控制的合成方法,该方法可控制区域取代基和复杂的多环苯并[ b ]噻吩,包括通过2-和3-氰基甲基噻吩的碳负离子在各种α-氧杂环丁烯二硫缩醛上进行共轭加成-置换,然后进行酸诱导的环化反应生成的共轭加合物。
An Expedient New Synthesis of Substituted Carbazoles via α-Oxoketene Acetals through Heteroaromatic Annelation Methodology
Synthesis of aryl methylthio ethers employing α-oxoketene dithioacetals
作者:R.Karl Dieter、Yawares Jenkitkasemwong Lin
DOI:10.1016/s0040-4039(00)98460-0
日期:1985.1
Reaction of α-oxoketenedithioacetals with methallyl magnesium chloride followed by acid treatment affords simple and annulated aryl methylthio ethers. The methylthio substituent can be easily removed with Raney Ni, undergo a Ni catalyzed substitution reaction with Grignard reagents, or serve as a directing and protecting group in Friedel-Crafts acylation reactions.
A new general regiocontrolled synthesis of highly substituted and condensed indoles via heteroaromatic annelation
作者:J.R. Suresh、Pranab K. Patra、H. Ila、H. Junjappa
DOI:10.1016/s0040-4020(97)00985-x
日期:1997.10
A new general method for the synthesis of substituted and condensed indoles has been developed via heteroaromatic annelation involving base induced conjugate addition-elimination of 1-methylpyrrole-2-acetonitrile to various α-oxoketene acetals followed by cyclization of the resulting adducts in the presence of TsOH in refluxing benzene.