A new approach to the facile synthesis of mono- and disubstituted quinazolin-4(3H)-ones under solvent-free conditions
作者:Peyman Salehi、Minoo Dabiri、Mohammad Ali Zolfigol、Mostafa Baghbanzadeh
DOI:10.1016/j.tetlet.2005.08.043
日期:2005.10
Quinazolin-4(3H)-one derivatives were synthesized successfully via a one-pot, three component reaction of isatoic anhydride and an orthoester with ammoniumacetate or a primary amine catalyzed by silica sulfuric acid under solvent-free conditions. This is the first report on the synthesis of 2-substituted quinazolin-4(3H)-ones by this procedure.
Microwave-assisted One-Pot Three Component Synthesis of Some New 4(3H)-Quinazolinone Derivatives
作者:Minoo Dabiri、Peyman Salehi、Mohammad S. Khajavi、Ali A. Mohammadi
DOI:10.3987/com-04-10042
日期:——
Efficient microwave-assisted synthesis of 4(3H)-quinazolinones by the one-pot three-component condensation of isatoic anhydride, primary amines and orthoesters in the presence of catalytic amounts of p-toluenesulfonic acid in high yields is reported.
EP1558260A4
申请人:——
公开号:EP1558260A4
公开(公告)日:2006-10-25
QUINAZOLINONE COMPOUNDS AS CALCILYTICS
申请人:NPS PHARMACEUTICALS, INC.
公开号:EP1558260A2
公开(公告)日:2005-08-03
[EN] QUINAZOLINONE COMPOUNDS AS CALCILYTICS<br/>[FR] COMPOSES DE QUINAZOLINONE UTILISES COMME CALCILYTIQUES
申请人:NPS PHARMA INC
公开号:WO2004041755A2
公开(公告)日:2004-05-21
Various calcilytic compounds and pharmaceutical compositions containing these compounds are disclosed. Calcilytic compounds are compounds capable of inhibiting calcium receptor activity. Techniques which can be used to obtain calcilytic compounds and uses of calcilyitc compounds as calcium receptor antagonists are also disclosed.