Chemokine receptor binding heterocyclic compounds with enhanced efficacy
申请人:——
公开号:US20040019058A1
公开(公告)日:2004-01-29
The invention relates to heterocyclic compounds consisting of a core nitrogen atom surrounded by three pendant groups, wherein two of the three pendant groups are preferably benzimidazolyl methyl and tetrahydroquinolyl, and the third pendant group contains N and optionally contains additional rings. The compounds bind to chemokine receptors, including CXCR4 and CCR5, and demonstrate protective effects against infection of target cells by a human immunodeficiency virus (HIV).
Provided are compounds of Formula (I):
or a pharmaceutically acceptable salt thereof, wherein R1, R2A, R2B, R3, R4, and R5 are as defined herein. Also provided is a pharmaceutically acceptable composition comprising a compound of Formula (I), or a pharmaceutically acceptable salt thereof. Also provided are methods of using a compound of Formula (I), or a pharmaceutically acceptable salt thereof.
Provided are compounds of Formula (I):
or a pharmaceutically acceptable salt thereof, wherein R
1
, R
2A
, R
2B
, R
3
, R
4
, and R
5
are as defined herein. Also provided is a pharmaceutically acceptable composition comprising a compound of Formula (I), or a pharmaceutically acceptable salt thereof. Also provided are methods of using a compound of Formula (I), or a pharmaceutically acceptable salt thereof.
Copper-catalyzed enantioselective synthesis of bridged bicyclic ketals from 1,1-disubstituted-4-methylene-1,6-hexanediols and related alkenols
作者:Ameya S. Burde、Shuklendu D. Karyakarte、Eric D. Sylvester、Sherry R. Chemler
DOI:10.1039/d0cc06404a
日期:——
Bridged bicyclic ketals display a range of bioactivities. Their catalytic enantioselective synthesis from acyclic 1,1-disubstituted alkene diols is disclosed. This reaction combines asymmetric catalysis with a distal radical migration. Alkynes and arenes undergo the group transfer.
Palladium-Catalyzed Cycloisomerizations of (<i>Z</i>)-1-Iodo-1,6-dienes: Iodine Atom Transfer and Mechanistic Insight to Alkyl Iodide Reductive Elimination
作者:Hui Liu、Chaolong Li、Dong Qiu、Xiaofeng Tong
DOI:10.1021/ja201204g
日期:2011.4.27
catalytic cycle, consisting of oxidative addition of Pd(0) to vinyl iodide, intramolecular alkene insertion, and alkyliodide reductive elimination, has been proposed and eventually supported by convincing evidence from a series of control experiments. More importantly, these control experiments disclose some features of the event of alkyliodide reductive elimination: (1) this reductive elimination is proved