Studies toward the Generation of Functionalized Quaternary Carbon Centers Relying on Wittig and Wittig–Still Allylic Ether Anionic Transpositions
摘要:
Although the [2,3]-Wittig and Wittig-Still rearrangements have long been known, their application in the generation of quaternary carbon centers in carbocyclic ring systems is sparse. Model studies utilizing this strategy and possible mechanisms are discussed herein. Unprecedented examples of an a-elimination pathway from stannylmethyl allyl ethers as a major undesired product in some Wittig-Still rearrangements are reported.
Studies toward the Generation of Functionalized Quaternary Carbon Centers Relying on Wittig and Wittig–Still Allylic Ether Anionic Transpositions
摘要:
Although the [2,3]-Wittig and Wittig-Still rearrangements have long been known, their application in the generation of quaternary carbon centers in carbocyclic ring systems is sparse. Model studies utilizing this strategy and possible mechanisms are discussed herein. Unprecedented examples of an a-elimination pathway from stannylmethyl allyl ethers as a major undesired product in some Wittig-Still rearrangements are reported.
The present invention provides compounds of Formula I (wherein R
1
, R
3
, X, W, Z and ring Y are as defined herein). The present invention also provides compositions comprising these compounds that are useful for treating cellular proliferative diseases or disorders associated with KSP kinesin activity and for inhibiting KSP kinesin activity.
Matoba,K. et al., Chemical and pharmaceutical bulletin, 1976, vol. 24, p. 165 - 168
作者:Matoba,K. et al.
DOI:——
日期:——
FUSED THIENO[2,3-B]PYRIDINE AND THIAZOLO[5,4-B]PYRIDINE COMPOUNDS FOR INHIBITING KSP KINESIN ACTIVITY
申请人:Schering Corporation
公开号:EP1871776A2
公开(公告)日:2008-01-02
[EN] COMPOUNDS FOR INHIBITING KSP KINESIN ACTIVITY<br/>[FR] COMPOSES SERVANT A INHIBER L'ACTIVITE DE LA KINESINE KSP
申请人:SCHERING CORP
公开号:WO2006098961A2
公开(公告)日:2006-09-21
[EN] The present invention provides compounds of Formula (I) (wherein R1, R3, X, W, Z and ring Y are as defined herein). The present invention also provides compositions comprising these compounds that are useful for treating cellular proliferative diseases or disorders associated with KSP kinesin activity and for inhibiting KSP kinesin activity. [FR] L'invention concerne des composés de formule (I) (dans laquelle R1, R3, X, W, Z et le cycle Y sont tels que définis dans la description). Cette invention concerne également des compositions comprenant ces composés, et servant à traiter des maladies liées à une prolifération cellulaire, ou des troubles qui sont associés à l'activité de la kinésine KSP, ainsi qu'à inhiber l'activité de cette kinésine KSP.
Studies toward the Generation of Functionalized Quaternary Carbon Centers Relying on Wittig and Wittig–Still Allylic Ether Anionic Transpositions
Although the [2,3]-Wittig and Wittig-Still rearrangements have long been known, their application in the generation of quaternary carbon centers in carbocyclic ring systems is sparse. Model studies utilizing this strategy and possible mechanisms are discussed herein. Unprecedented examples of an a-elimination pathway from stannylmethyl allyl ethers as a major undesired product in some Wittig-Still rearrangements are reported.