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Current content: 157 117 910 patent documents

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139 301 new documents added

1 340 825 documents amended

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EP 1663984 A2 20060607 - PROCESS FOR PREPARATION OF BENAZEPRIL

Title (en)

PROCESS FOR PREPARATION OF BENAZEPRIL

Title (de)

VERFAHREN ZUR HERSTELLUNG VON BENAZEPRIL

Title (fr)

PROCEDE DE PREPARATION DE BENAZEPRIL

Publication

EP 1663984 A2 20060607 (EN)

Application

EP 04744090 A 20040730

Priority

IB 2004002437 W 20040730
IN 950DE2003 A 20030731

Abstract (en)

[origin: WO2005009972A2] The present invention relates to an improved process for preparation of highly pure benazepril of Formula I, wherein R is hydrogen or pharmacologically acceptable salt thereof by completely eliminating the impurity of 7-bromo analogue of benazepril of Formula Ia, wherein R is bromo group.

IPC 1-7

C07D 223/00

IPC 8 full level

C07D 223/00 (2006.01); C07D 223/16 (2006.01)

CPC (source: EP)

C07D 223/16 (2013.01)

Citation (search report)

See references of WO 2005009972A2

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2005009972 A2 20050203; WO 2005009972 A3 20050317; CN 1829696 A 20060906; EP 1663984 A2 20060607

DOCDB simple family (application)

IB 2004002437 W 20040730; CN 200480022196 A 20040730; EP 04744090 A 20040730