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:
Mar. 18, 2008
Filed:
Feb. 10, 2006
Applicants:
Muhammed Majeed, Piscataway, NJ (US);
Kalyanam Nagabhushanam, North Brunswick, NJ (US);
Keshava Rao Rapole, Edison, NJ (US);
Ravikrishna Chebolu, Plainsboro, NJ (US);
Inventors:
Muhammed Majeed, Piscataway, NJ (US);
Kalyanam Nagabhushanam, North Brunswick, NJ (US);
Keshava Rao Rapole, Edison, NJ (US);
Ravikrishna Chebolu, Plainsboro, NJ (US);
Assignee:
Sabinsa Corporation, PisCataway, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
C07C 53/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for the manufacture of α-Difluoromethylornithine, analogs and derivatives is described from ornithine hydrochloride or from N-phthaloyl ornithine hydrochloride, conversion to an alkyl ester, conversion to solid derivatives through the formation of Schiff bases, subsequent halomethylation using suitable bases and hydrolysis.