L'addition de radicauxalkales a des composes allyliques ou propargyliques donne des adduits radicaux subissant une β-elimination avec des substituants tels que: 卤素、PhS、PhSO 2 、Bu 2 Sn、ou HgCl、pour form des propenes subitues allenes groupe 烷基和联合国自由基消除 qui regenere le 自由基烷基替代 de l'halogenure d'alkalimercure。Avec des substituants β-oxy, tels que: O 2 CR, OP(O) (OEt) 2 , O 3 SAr, OPh, OSiMe 3 , ou OH,
CuI-catalyzed coupling reaction of R(alkyl)-X with Ar(aryl)MgBr at rt was completed within 2 h. Effective leaving groups X in R-X were Br, I, OTs, but not Cl. Grignard reagents ArMgBr with both standard and bulky Ar such as 2-MeC6H4, 2-MeOC6H4, and 2,6-(Me)2C6H3 afforded the desired products in good yields. Ester and cyano groups in R-X were tolerated. Coupling reaction with R(alkyl)-MgBr proceeded as
在LiCl的存在下,在室温下2小时内完成CuI催化的R(烷基)-X与Ar(芳基)MgBr的偶联反应。RX中有效的离去基团X是Br,I,OT,但不是Cl。带有标准Ar和大块Ar的格氏试剂ArMgBr(例如2-MeC 6 H 4,2 -MeOC 6 H 4和2,6-(Me)2 C 6 H 3)以良好的收率提供了所需的产物。RX中的酯基和氰基基团是可容忍的。与R(烷基)-MgBr的偶联反应也进行。
HETEROCYCLIC CETP INHIBITORS
申请人:Salvati E. Mark
公开号:US20070161685A1
公开(公告)日:2007-07-12
Compounds of formula Ia and Ib
wherein A, B, C and R
1
are described herein.
式Ia和Ib的化合物
其中A、B、C和R1
如本文所述。
Copper-Catalyzed Cross-Coupling of Functionalized Alkyl Halides and Tosylates with Secondary and Tertiary Alkyl Grignard Reagents
作者:Peng Ren、Lucas-Alexandre Stern、Xile Hu
DOI:10.1002/anie.201204275
日期:2012.9.3
Added value: A copper‐based method is highly efficient for the cross‐coupling of alkyl electrophiles with secondary and tertiary alkylGrignardreagents. The method is distinguished by its broad substrate scope and high functional group tolerance.
Fused Heterocyclic Compounds as Ion Channel Modulators
申请人:Kobayashi Tetsuya
公开号:US20120010192A1
公开(公告)日:2012-01-12
The present disclosure relates to compounds that are sodium channel inhibitors and to their use in the treatment of various disease states, including cardiovascular diseases and diabetes. In particular embodiments, the structure of the compounds is given by Formula I:
wherein R
1
, R
2
, R
3
, R
4
, and R
5
are as described herein, to methods for the preparation and use of the compounds and to pharmaceutical compositions containing the same.
SMALL MOLECULE INHIBITORS OF MCL-1 AND USES THEREOF
申请人:THE REGENTS OF THE UNIVERSITY OF MICHIGAN
公开号:US20150284387A1
公开(公告)日:2015-10-08
This invention is in the field of medicinal chemistry. In particular, the invention relates to a new class of small-molecules having pyrazolopyridine structure which function as inhibitors of Mcl-1 protein, and their use as therapeutics for the treatment of cancer and other diseases.