[EN] HYDROXYMETHYL PYRROLIDINES AS BETA 3 ADRENERGIC RECEPTOR AGONISTS<br/>[FR] HYDROXYMÉTHYLPYRROLIDINES EN TANT QU'AGONISTES DE RÉCEPTEUR BÊTA-3-ADRÉNERGIQUE
申请人:MERCK & CO INC
公开号:WO2009123870A1
公开(公告)日:2009-10-08
The present invention provides compounds of Formula I, pharmaceutical compositions thereof, and method of using the same in the treatment or prevention of diseases mediated by the activation of β3-adrenoceptor.
One‐Pot Synthesis of Mono‐ and Disubstituted (3<i>H</i>)‐Quinazolin‐4‐ones in Dry Media Under Microwave Irradiation
作者:Minoo Dabiri、Peyman Salehi、Ali A. Mohammadi、Mostafa Baghbanzadeh
DOI:10.1081/scc-200048462
日期:2005.1
supported on silica gel is an efficient medium for one‐pot synthesis of (3H)‐quinazolin‐4‐ones in the absence of solvent undermicrowaveirradiation or classicalheating. The reaction of orthoesters with 2‐aminobenzamides ends up with the formation of monosubstituted (3H)‐quinazolin‐4‐ones. One‐pot synthesis of disubstituted (3H)‐quinazolin‐4‐ones is also achieved by the reaction of isatoic anhydride
[Fe(F20TPP)Cl] catalyzed intramolecular C–N bond formation for alkaloid synthesis using aryl azides as nitrogen source
作者:Yungen Liu、Jinhu Wei、Chi-Ming Che
DOI:10.1039/c0cc01825b
日期:——
tetrahydroquinolines, dihydroquinazolinones and quinazolinones have been accomplished in moderate to excellent yields via [Fe(F(20)TPP)Cl] catalyzed intramolecular C-N bond formation usingarylazides as nitrogensource.
KAl(SO4)2·12H2O (Alum) Catalyzed One-Pot Three-Component Synthesis of 2-Alkyl and 2-Aryl-4(3H)-quinazolinone under Microwave Irradiation and Solvent Free Conditions
作者:Ali A. Mohammadi、S. S. Sadat Hossini
DOI:10.1002/cjoc.201180344
日期:2011.9
3‐disubstituted‐4(3H)‐quinazolinones were synthesed by one‐pot three‐component method with isatoic anhydride, orthoesters and amines as raw materials in the presence of KAl(SO4)2·12H2O (Alum) undermicrowaveirradiation and solvent‐freeconditions. 6‐Bromo‐2‐propyl‐3‐p‐tolylquinazolin‐4(3H)‐one (4m), 6‐bromo‐2‐methyl‐3‐phenethylquinazolin‐4(3H)‐one (4n) and 6‐bromo‐2‐ethyl‐3‐phenethylquinazolin‐4(3H)‐one (4o)
在KAl(SO 4)2 ·12H 2 O(明矾)存在下,以等角酸酐,原酸酯和胺为原料,通过一锅三组分法合成了20种2,3-二取代-4(3 H)-喹唑啉酮。)在微波辐射和无溶剂条件下。6‐溴‐2‐丙基‐3‐对甲苯基喹唑啉‐4(3 H)‐1 (4m),6‐溴‐2‐甲基‐3‐苯乙基喹唑啉‐4(3 H)‐1 (4n)和6‐通过IR,1 H NMR,13 C NMR和元素分析对溴-2-乙基-3-苯基乙基喹唑啉-4(3 H)-one(4o)进行了表征。
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.