Influence of steric and polar effects in determining the equilibrium position for <i>cis</i>–<i>trans</i>-olefin pairs
作者:D. V. Gardner、D. E. McGreer
DOI:10.1139/v70-349
日期:1970.7.1
substituted by t-butyl or isopropyl groups at the β-position along with methoxyl, thioethoxyl dimethylamino, chloro, and hydrogen at the other β-position have been prepared. Evaluation of the isomer stability from cis-trans equilibrations achieved catalytically or thermally supports earlier observations'that steric and polar factors maintain a strong tendency for a β-methoxyl group to be trans to a nitrile or
ACYCLIC CYANOETHYLPYRAZOLES AS JANUS KINASE INHIBITORS
申请人:Brubaker Jason
公开号:US20140228358A1
公开(公告)日:2014-08-14
The instant invention provides compounds of formula I which are JAK inhibitors, and as such are useful for the treatment of JAK-mediated diseases such as rheumatoid arthritis, asthma, COPD and cancer.
CYANOMETHYLPYRAZOLE CARBOXAMIDES AS JANUS KINASE INHIBITORS
申请人:MERCK SHARP& DOHME CORP.
公开号:US20140228348A1
公开(公告)日:2014-08-14
The instant invention provides compounds of formula I which are JAK inhibitors, and as such are useful for the treatment of JAK-mediated diseases such as rheumatoid arthritis, asthma, COPD and cancer.
[GRAPHICS]The Peterson reaction between (t-BuO)Ph2SiCH2CN and various aidehydes furnishes the corresponding beta-monosubstituted alpha,beta-unsaturated cyanides with high Z selectivity (Z:E = 92:8 to > 98:2).
A Stereospecific Synthesis of 2-Alkenenitriles from Vinylcuprates