been achieved through palladium-catalyzed Suzuki coupling. Using appropriately substituted 5-p-toluenesulfonyltetrazoles as substrates (obtained by cycloaddition of a substituted azide with p-toluenesulfonyl cyanide), this methodology provides access to a variety of highly substituted tetrazoles that would be difficult to access otherwise. The procedure is compatible with functional groups commonly found
The Suzuki-Miyaura reaction of methyl-5-bromo-8-(tosyloxy)-1,6-naphthyridine-7-carboxylate (5), with 2 equiv. of arylboronic acids gave diarylated product, 5,8–diaryl-1,6-naphthyridine-7-carboxylate (7), whereas 1 equiv. of arylboronic acid resulted in site-selective formation of 5-aryl-8-(tosyloxy)-1,6-naphthyridine-7-carboxylate (8). The reactions proceeded with excellent chemo-selectivity in favor
A convenient and efficient C–OH bond activation, PdCl<sub>2</sub>(PPh<sub>3</sub>)<sub>2</sub>catalyzed, C–C bond formation of tautomerizable quinolinones with the aid of BOP reagent and boronic acids
作者:Yadavalli Suneel Kumar、C. Dasaradhan、Kamalakannan Prabakaran、Fazlur-Rahman Nawaz Khan、Euh Duck Jeong、Eun Hyuk Chung、Hyun Gyu Kim Hyun Gyu Kim
DOI:10.1039/c4ra05161k
日期:——
C–C bond formation of tautomerizable quinolinones. C–OH bond activation using BOP reagent and boronic acids.
酮互变异构的喹啉酮的C-C键形成。使用BOP试剂和硼酸对C-OH键进行活化。
Benzodioxane and benzodioxolane derivatives and uses thereof
申请人:Zhou Dahui
公开号:US20060241172A1
公开(公告)日:2006-10-26
Compounds of formula I or pharmaceutically acceptable salts thereof are provided:
wherein each of R
1
, R
2
, R
3
, R
4
, y, n, m, and Ar are as defined, and described in classes and subclasses herein, which are agonists or partial agonists of the 2C subtype of brain serotonin receptors. The compounds, and compositions containing the compounds, can be used to treat a variety of central nervous system disorders such as schizophrenia.