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:
Jul. 26, 2011
Filed:
Nov. 14, 2008
Applicants:
Ulrich Beutler, Oberwil, CH;
Gerhard Penn, Oberwil, CH;
Inventors:
Ulrich Beutler, Oberwil, CH;
Gerhard Penn, Oberwil, CH;
Assignee:
Novartis AG, Basel, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 3/10 (2006.01); C07C 209/84 (2006.01);
U.S. Cl.
CPC ...
Abstract
Purification process for the preparation of the allylamine pharmaceutical terbinafine of formula I in free base form or acid addition salt form, by distilling crude terbinafine base, preferably by short path distillation, e.g. at a temperature above 100° C. and reduced pressure, e.g. 0.2 mbar, and recovering the purified product in free base or acid addition salt form.