The bis(5-arylfuran-2-yl)methane framework has been obtained through defunctionalization of aryl ketones, derived from abundantly available L-(+)-tartaric acid, under the influence of acid. The stereocomponents present in these starting aryl ketones have been found to be insignificant for this transformation.
A nitrile-stabilized ammonium ylide as a masked C–CN synthon in heterocyclization with amidine–imine: 3-component assembly to fused pyrimidine scaffolds
作者:Sankar K. Guchhait、Meenu Saini、Divyani Sumkaria、Vikas Chaudhary
DOI:10.1039/c7cc02946b
日期:——
nitrile-stabilized quaternary ammonium ylide as masked C–C=N synthon in contrast to its usual sigmatropic rearrangement has been demonstrated. Its reaction with 2-aminopyridine-derived aldimine undergoes electronically-assisted nucleophilic additions and Hofmannelimination, and provides a new method to access fused-pyrimidines.
Synthesis of (+)-Centrolobine and Its Analogues by Using Acyl Anion Chemistry
作者:Kasireddy Sudarshan、Indrapal Singh Aidhen
DOI:10.1002/ejoc.201300097
日期:2013.4
A new route based on the use of acyl anion chemistry was developed for the synthesis of (+)-centrolobine and itsanalogues. Acid-catalyzed benzylic cation initiated cyclization was the key step in the stereoselective formation of the cis
INDOLE CARBOXAMIDE DERIVATIVES AS P2X7 RECEPTOR ANTAGONIST
申请人:ACTELION PHARMACEUTICALS LTD
公开号:US20150322008A1
公开(公告)日:2015-11-12
The invention relates to indole carboxamide derivatives of formula (I),
wherein R
1
, R
2
, R
3
, R
4
, R
5
and R
6
are as defined in the description, their preparation and their use as pharmaceutically active compounds.