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. 18, 2008
Filed:
May. 17, 2004
Applicants:
Viktor Gyollai, Debrecen, HU;
Csaba Szabo, Debrecen, HU;
Claude Singer, Kfar Saba, IL;
Ehud Amir, Ramat-Aviv, IL;
Inventors:
Viktor Gyollai, Debrecen, HU;
Csaba Szabo, Debrecen, HU;
Claude Singer, Kfar Saba, IL;
Ehud Amir, Ramat-Aviv, IL;
Assignee:
Teva Gyógyszergyár Zártkörüen Müködö Részvénytársaság, Debrecen, HU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 205/085 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to the β polymorph of Aztreonam, which contains less than 2.5% by weight residual solvent and to a process of making said polymorph. In the process of the invention, a polymorph of Aztreonam is dissolved in an absolute Calcohol in the presence of a base to form a solution, an acid is added to the solution, and the solution is stirred efficiently.