The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 09, 2009
Filed:
Oct. 21, 2003
Applicants:
Hana Stepankova, Cesky Brod, CZ;
Josef Hajicek, Praha 2, CZ;
Stanislav Simek, Praha 10, CZ;
Inventors:
Assignee:
Zentiva, a.s., , CZ;
Primary Examiner:
Int. Cl.
CPC ...
C07C 269/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The compound of formula (III), optionally its alkaline salt, is reacted with a compound of formula VII, wherein X is a leaving group, resulting in (S)-rivastigmine of formula II, which is then optionally converted into (S)-rivastigmine hydrogentartrade of formula I.