Polymer-supported reagents for multi-step organic synthesis: application to the synthesis of sildenafil
摘要:
Sildenafil 1 (Viagra(TM)), a well known and commercially important pharmaceutical drug, has been prepared using polymer-supported reagents in a multi-step, convergent process resulting in a clean and efficient preparation without the need for conventional purification methods. (C) 2000 Elsevier Science Ltd. All rights reserved.
The present invention discloses novel compounds inhibiting LRRK2 kinase activity, the preparation processes thereof, the compositions containing them, as well as the use in treating diseases characterized by LRRK2 kinase activity, particularly Parkinson's disease and Alzheimer's disease.
NOVEL PROCESS FOR THE PREPARATION OF SILDENAFIL CITRATE
申请人:Matrix Laboratories Ltd
公开号:EP2024369A2
公开(公告)日:2009-02-18
NOVEL COMPOUNDS
申请人:Glaxo Group Limited
公开号:EP2483254A1
公开(公告)日:2012-08-08
[EN] NOVEL PROCESS FOR THE PREPARATION OF SILDENAFIL CITRATE<br/>[FR] NOUVEAU PROCÉDÉ DE PRÉPARATION DU CITRATE DE SILDÉNAFIL
申请人:MATRIX LAB LTD
公开号:WO2007141805A2
公开(公告)日:2007-12-13
[EN] Disclosed herein the process for producing 5-[2-ethoxy-5-(4-methyl)piperazine-l-yl- sulfonyl)phenyl]- 1 -methyl-3-n-propyl- 1 ,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one or its salt thereof employing novel intermediate. [FR] L'invention décrit un nouveau procédé de préparation de la 5-[2-éthoxy-5-(4-méthyl)pipérazine-1-yl-sulfonyl) phényl]-1-méthyl-3-n-propyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one ou d'un sel de celle-ci à l'aide d'un nouvel intermédiaire.