Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2011-02-01
2011-02-01
Stockton, Laura L. (Department: 1626)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
active
07880016
ABSTRACT:
The invention relates to a process for preparing a salt of an optionally substituted 4-benzimidazol-2-ylmethylamino)-benzamidine, characterised in that(a) an optionally correspondingly substituted diaminobenzene is condensed with 2-[4-(1,2,4-oxadiazol-5-on-3-yl)-phenylamino]-acetic acid,b) i) the product thus obtained is hydrogenated,ii) optionally the amidino group is carbonylated, without isolating the intermediate product of the hydrogenation beforehand andiii) without prior isolation of the intermediate product of the carbonylation the desired salt is isolated.
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Hamm Rainer
Hausherr Arndt
Koch Gunter
Schlarb Kerstin
Schmitt Heinz-Peter
Boehringer Ingelheim International GmbH
Morris Michael P.
Petka Wendy A.
Stockton Laura L.
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