EP 2024369 A2 20090218 - NOVEL PROCESS FOR THE PREPARATION OF SILDENAFIL CITRATE
Title (en)
NOVEL PROCESS FOR THE PREPARATION OF SILDENAFIL CITRATE
Title (de)
NEUES VERFAHREN ZUR HERSTELLUNG VON SILDENAFILCITRAT
Title (fr)
NOUVEAU PROCÉDÉ DE PRÉPARATION DU CITRATE DE SILDÉNAFIL
Publication
Application
Priority
- IN 2007000219 W 20070601
- IN 960CH2006 A 20060605
Abstract (en)
[origin: WO2007141805A2] 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.
IPC 8 full level
C07C 65/05 (2006.01); C07D 231/06 (2006.01); C07D 487/04 (2006.01)
CPC (source: EP)
C07D 231/40 (2013.01); C07D 295/26 (2013.01); C07D 487/04 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
WO 2007141805 A2 20071213; WO 2007141805 A3 20080221; EP 2024369 A2 20090218; EP 2024369 A4 20101027
DOCDB simple family (application)
IN 2007000219 W 20070601; EP 07805617 A 20070601