The invention provides compounds of formula (1),
and the pharmaceutically acceptable salt thereof, wherein R
1
, n and R
2
are as described herein; compositions thereof; and uses thereof.
Disclosed herein are compounds of Formula (I) that include a sulfonate ester, ester or ether group. Compounds of Formula (I) can be included in pharmaceutical compositions, and can be used to treating and/or ameliorating a disease or condition, such as cancer, a microbial disease and/or inflammation.
A study of diketopiperazines as electron-donor initiators in transition metal-free haloarene–arene coupling
作者:Florimond Cumine、Shengze Zhou、Tell Tuttle、John A. Murphy
DOI:10.1039/c7ob00036g
日期:——
been shown to promote carbon–carbon coupling between benzene and aryl halides in the presence of potassium tert-butoxide and without the assistance of a transition metal catalyst. The structure of the diketopiperazine has an influence on its reductive potential and can help to promote the coupling of the more challenging aryl bromides with benzene.
One-Pot Synthesis of Symmetrical Di- and Triarylamines Using Urea as the Source of the Amino Group
作者:Irina P. Beletskaya、Galina A. Artamkina、Alexey G. Sergeev、Mikhail M. Stern
DOI:10.1055/s-2005-923596
日期:——
A simple one-pot palladium-catalyzed reaction for the conversion of aryl halides to aryl amines using urea as an ammonia equivalent is reported. Arylation of urea in the presence of Pd2dba3, t-Bu3P·HBF4 and t-BuOK in dioxane gives di- and triarylamines in 65-95% yields.
catalyzed reaction of aryl halides with sodium t-butoxide effectively to give aryl t-butylethers. The high catalytic activity realized the formation of aryl t-butylethers from not only electron-deficient aryl halides but also electron-rich aryl halides. Moreover, the first synthesis of 4-chlorobenzofuran was attained utilizing the selective mono-t-butoxylation of aryl dihalide.