EP 1841774 A1 20071010 - PROCESS FOR PREPARING 5,6-DIHYDRO-4-(S)-(ETHYLAMINO)-6-(S) METHYL-4H-THIENOÝ2,3b¨THIOPYRAN-2-SULPHONAMIDE-7,7-DIOXIDE HCI
Title (en)
PROCESS FOR PREPARING 5,6-DIHYDRO-4-(S)-(ETHYLAMINO)-6-(S) METHYL-4H-THIENOÝ2,3b¨THIOPYRAN-2-SULPHONAMIDE-7,7-DIOXIDE HCI
Title (de)
VERFAHREN ZUR HERSTELLUNG VON 5,6-DIHYDRO-4-(S)-(ETHYLAMINO)-6-(S)-METHYL-4H-THIENO[2,3B]THIOPYRAN-2-SULFONSÄUREAMID-7,7-DIOXID-HCL
Title (fr)
PROCÉDÉ DE SYNTHÈSE DU 5,6-DIHYDRO-4-(S)-(ÉTHYLAMINO)-6-(S)MÉTHYL-4H-THIÉNO[2,3b]THIOPYRAN-2-SULFONAMIDE-7,7-DIOXYDE HCI
Publication
Application
Priority
IN 2004000420 W 20041228
Abstract (en)
[origin: WO2006070387A1] The present invention relates to an improved process for the preparation of 5,6-dihydro-4-(S)-(ethylamino)-6-(S)methyl-4H-thieno[2,3b]thiopyran-2-sulphonamide-7,7-dioxide hydrochloride of formula (I) commonly known as Dorzolamide Hydrochloride useful as an agent to reduce intraoccular pressure by inhibiting carbonic anhydrase enzyme.
IPC 8 full level
C07D 495/04 (2006.01)
CPC (source: EP)
C07D 495/04 (2013.01)
Citation (search report)
See references of WO 2006070387A1
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 MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2006070387 A1 20060706; AU 2004326111 A1 20060706; BR PI0419257 A 20080506; EP 1841774 A1 20071010; MX 2007007923 A 20071114
DOCDB simple family (application)
IN 2004000420 W 20041228; AU 2004326111 A 20041228; BR PI0419257 A 20041228; EP 04816672 A 20041228; MX 2007007923 A 20041228