Synthesis of 4-Substituted Chlorophthalazines, Dihydrobenzoazepinediones, 2-Pyrazolylbenzoic Acid, and 2-Pyrazolylbenzohydrazide via 3-Substituted 3-Hydroxyisoindolin-1-ones
作者:Hanh Nho Nguyen、Victor J. Cee、Holly L. Deak、Bingfan Du、Kathleen Panter Faber、Hakan Gunaydin、Brian L. Hodous、Steven L. Hollis、Paul H. Krolikowski、Philip R. Olivieri、Vinod F. Patel、Karina Romero、Laurie B. Schenkel、Stephanie D. Geuns-Meyer
DOI:10.1021/jo3000628
日期:2012.4.20
hydrazine, followed by chlorination with POCl3. We have also discovered twonovel transformations of 3-vinyl- and 3-alkynyl-3-hydroxyisoindolinones. Addition of vinyl organometallic reagents to N,N-dimethylaminophthalimide (8a) provided dihydrobenzoazepinediones 15a–15c via the proposed ringexpansion of 3-vinyl-3-hydroxyisoindolinone intermediates. 3-Alkynyl-3-hydroxyisoindolinones react with hydrazine and
[EN] PYRAZOLOPYRIMIDINES AS CYCLIN-DEPENDENT KINASE INHIBITORS<br/>[FR] PYRAZOLOPYRIMIDINES TENANT LIEU D'INHIBITEURS DE KINASES DEPENDANTES DE LA CYCLINE
申请人:SCHERING CORP
公开号:WO2004022561A1
公开(公告)日:2004-03-18
In its many embodiments, the present invention provides a novel class of pyrazolo[1,5-a]pyrimidine compounds as inhibitors of cyclin dependent kinases, methods of preparing such compounds, pharmaceutical compositions containing one or more such compounds, methods of preparing pharmaceutical formulations comprising one or more such compounds, and methods of treatment, prevention, inhibition, or amelioration of one or more diseases associated with the CDKs using such compounds or pharmaceutical compositions.
Rapid Metal-Free Formation of Free Phosphines from Phosphine Oxides
作者:Cei B. Provis-Evans、Emma A. C. Emanuelsson、Ruth L. Webster
DOI:10.1002/adsc.201800723
日期:2018.10.18
A rapid method for the reduction of secondary phosphineoxides under mild conditions has been developed, allowing simple isolation of the corresponding free phosphines. The methodology involves the use of pinacol borane (HBpin) to effect the reduction while circumventing the formation of a phosphine borane adduct, as is usually the case with various other commonly used borane reducing agents such as
A Superior Method for the Reduction of Secondary Phosphine Oxides
作者:Carl A. Busacca、Jon C. Lorenz、Nelu Grinberg、Nizar Haddad、Matt Hrapchak、Bachir Latli、Heewon Lee、Paul Sabila、Anjan Saha、Max Sarvestani、Sherry Shen、Richard Varsolona、Xudong Wei、Chris H. Senanayake
DOI:10.1021/ol0517832
日期:2005.9.1
to be outstanding reductants for secondaryphosphineoxides (SPOs). All classes of SPOs can be readily reduced, including diaryl, arylalkyl, and dialkyl members. Many SPOs can now be reduced at cryogenic temperatures, and conditions for preservation of reducible functional groups have been found. Even the most electron-rich and sterically hindered phosphineoxides can be reduced in a few hours at 50-70
Dibenzyl amine compounds and derivatives, pharmaceutical compositions containing such compounds and the use of such compounds to elevate certain plasma lipid levels, including high density lipoprotein-cholesterol and to lower certain other plasma lipid levels, such as LDL-cholesterol and triglycerides and accordingly to treat diseases which are exacerbated by low levels of HDL cholesterol and/or high levels of LDL-cholesterol and triglycerides, such as atherosclerosis and cardiovascular diseases in some mammals, including humans.