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:
Aug. 30, 2005
Filed:
Oct. 05, 2001
Vilmos Keri, Debrecen, HU;
Lajos Deak, Debrecen, HU;
Ilona Forgacs, Debrecen, HU;
Csaba Szabo, Debrecen, HU;
Arvai Edit Nagyne, Debrecen, HU;
Vilmos Keri, Debrecen, HU;
Lajos Deak, Debrecen, HU;
Ilona Forgacs, Debrecen, HU;
Csaba Szabo, Debrecen, HU;
Arvai Edit Nagyne, Debrecen, HU;
TEVA Gyógyszergyár Részvénytársaság, Debrecen, HU;
Abstract
The present invention provides pravastatin sodium substantially free of pravastatin lactone and epiprava, the C-6 epimer of pravastatin. The present invention further provides a novel process for recovering pravastatin sodium from a fermentation broth in such high purity. The process includes the stages of forming an solution of the compound by extraction, obtaining an ammonium salt of pravastatin from the solution, purifying the ammonium salt of the compound and transposing the salt of the compound to pravastatin sodium.