Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Reexamination Certificate
2006-07-10
2010-06-01
Chung, Susannah (Department: 1626)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
C548S250000
Reexamination Certificate
active
07728024
ABSTRACT:
The invention relates to a method or process for the manufacture of blood pressure lowering agents, such as valsartan, novel intermediates as well as process steps in said synthesis. The method or process leads via the novel intermediate salts of the formula IA,or a tautomer thereof, wherein [kat]n+is a cation and n is 1, 2, 3, 4, 5 or 6.
REFERENCES:
patent: 5371233 (1994-12-01), Daumas et al.
patent: 2007/0043098 (2007-02-01), Sedelmeier
patent: 1878729 (2008-01-01), None
patent: 1533305 (2008-02-01), None
patent: WO 2004/026847 (2004-04-01), None
patent: WO 2005/014602 (2005-05-01), None
Grimler Dominique
Sedelmeier Gottfried
Chung Susannah
Majka Joseph T.
Novartis AG
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