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:
Sep. 13, 2005
Filed:
Mar. 17, 2003
Applicants:
Dumitru Ionescu, Ann Arbor, MI (US);
Peter Blumbergs, Royal Oak, MI (US);
Gary L. Silvey, Overland Park, KS (US);
Inventors:
Dumitru Ionescu, Ann Arbor, MI (US);
Peter Blumbergs, Royal Oak, MI (US);
Gary L. Silvey, Overland Park, KS (US);
Assignees:
Ash Stevens, Inc., Detroit, MI (US);
Pharmion Corporation, Boulder, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D253/02 ; C07D405/04 ;
U.S. Cl.
CPC ...
Abstract
The invention includes methods for isolating crystalline Form I of 5-azacytidine substantially free of other forms, wherein 5-azacytidine is represented by the formula:The invention also includes pharmaceutical compositions comprising Form I of 5-azacytidine.