[EN] 1,3,4-OXADIAZOLE DERIVATIVE COMPOUNDS AS HISTONE DEACETYLASE 6 INHIBITOR, AND THE PHARMACEUTICAL COMPOSITION COMPRISING THE SAME [FR] COMPOSÉS DÉRIVÉS DE 1,3,4-OXADIAZOLE UTILISÉS COMME INHIBITEURS D'HISTONE DÉSACÉTYLASE 6, ET COMPOSITION PHARMACEUTIQUE LES COMPRENANT
Selenium-Catalyzed Carbonylative Synthesis of 3,4-Dihydroquinazolin-2(1<i>H</i>)-one Derivatives with TFBen as the CO Source
作者:Rong Zhou、Xinxin Qi、Xiao-Feng Wu
DOI:10.1021/acscombsci.9b00090
日期:2019.8.12
An efficient and generalcarbonylative procedure for the synthesis of 3,4-dihydroquinazolin-2(1H)-one from 1-(halomethyl)-2-nitrobenzenes and aryl/alkyl amines have been explored. In this approach, to avoid of using toxic CO gas, a solid and stable CO precursor, TFBen (benzene-1,3,5-triyl triformate), was utilized. With elemental selenium as the catalyst, a variety of aryl/alkyl amines has been tolerated
The invention provides compounds of formula (I)
wherein R
1
, R
2
, R
3
, R
4
, R
5
, R
6
, R
7
, R
8
, R
9
, R
10
, R
11
and R
12
are as defined in the specification, and optical isomers, racemates and tautomers thereof, and pharmaceutically acceptable salts thereof; together with processes for their preparation, pharmaceutical compositions containing them and their use in therapy. The compounds are useful in the treatment of respiratory syncytial virus (RSV).