[3+1+1] type cyclization of ClCF<sub>2</sub>COONa for the assembly of imidazoles and tetrazoles <i>via in situ</i> generated isocyanides
作者:Ya Wang、Yao Zhou、Qiuling Song
DOI:10.1039/d0cc01919d
日期:——
A facile synthesis of imidazoles and tetrazoles via [3+1+1] type cyclization of ClCF2COONa is developed. A diverse array of imidazoles and tetrazoles were obtained in decent yields via isocyanide intermediates. Notably, this is the first example of the cycloaddition of in situ generated isocyanides.
[EN] N- CYCLOPROPYL - N- PIPERIDINYLBENZAMIDES AS GPR119 MODULATORS<br/>[FR] N-CYCLOPROPYL-N-PIPÉRIDINYLBENZAMIDES EN TANT QUE MODULATEURS DE GPR119
申请人:BOEHRINGER INGELHEIM INT
公开号:WO2012123449A1
公开(公告)日:2012-09-20
The present invention relates to compounds of general formula I, wherein the groups R1, LP, LQ, Ar, mand n are as defined in the application, which have valuable pharmacological properties, and in particular bind to the GPR119 receptor and modulate its activity.
Indium triflate-catalyzed one-pot synthesis of 1-substituted-1H-1,2,3,4-tetrazoles under solvent-free conditions
作者:Dhiman Kundu、Adinath Majee、Alakananda Hajra
DOI:10.1016/j.tetlet.2009.03.131
日期:2009.6
A simple, efficient, and general method has been developed for the synthesis of 1-substituted-1H-1,2,3,4-tetrazoles via a three-component condensation of amine, trimethyl orthoformate, and sodium azide in presence of a catalytic amount of indium triflate under solvent-free conditions. The reaction proceeds smoothly to generate the corresponding 1-substituted tetrazoles in moderate to excellent yields under heating. (C) 2009 Elsevier Ltd. All rights reserved.
New compounds, pharmaceutical compositions and uses thereof
申请人:NOSSE Bernd
公开号:US20130065906A1
公开(公告)日:2013-03-14
The present invention relates to compounds of general formula I,
wherein the groups R
1
, L
P
, L
Q
, Ar, m and n are as defined in the application, which have valuable pharmacological properties, and in particular bind to the GPR119 receptor and modulate its activity.
本发明涉及一般式I的化合物,
其中基团R
1
,L
P
,L
Q
,Ar,m和n如申请中所定义,具有有价值的药理特性,特别是结合GPR119受体并调节其活性。
Practical synthesis of tetrazoles from amides and phosphorazidates in the presence of aromatic bases
Tetrazoles were effectively synthesized from amides using diphenyl phosphorazidate or bis(p-nitrophenyl) phosphorazidate in the presence of aromaticbases. Various amides underwent the proposed cycloaddition reaction to provide the corresponding tetrazoles. Studies on the racemization of chiral substrates were also performed. Overall, the proposed synthesis method enables the preparation of 1,5-disubstituted