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:
Nov. 11, 2003
Filed:
Jul. 03, 2002
Zoltan Greff, Budapest, HU;
Peter Kotay Nagy, Vac, HU;
Jozsef Barkoczy, Budapest, HU;
Gyula Simig, Budapest, HU;
Laszlo Balazs, Budapest, HU;
Imre Doman, Budapest, HU;
Zoltan Ratkai, Budapest, HU;
Peter Seres, Budapest, HU;
Zsuzsa Szent Kirallyi, Budapest, HU;
Ferenc Barta, Tiszavasvari, HU;
Gyorgyi Vereczkeyne Donath, Budapest, HU;
Kalman Nagy, Budapest, HU;
Egis Gyogyszergyar Rt., Budapest, HU;
Abstract
The invention relates to a process for the preparation of amorphous atorvastatin calcium by recrystallization of crude atorvastatin from an organic solvent which comprises dissolving crude amorphous atorvastatin calcium in a lower alkanol containing 2-4 carbon atoms or a mixture of such alkanols under heating and isolating the amorphous atorvastatin calcium precipitated after cooling. The atorvastatin calcium obtained is a known valuable agent useful in treating hyperlipidemia and hypercholestrolemia.