Patents Examined by Taofio Solola
  • Convenient process of manufacture for difluoromethylornithine and related compounds
    Patent number: 6998502
    Abstract: A process for the manufacture of ?-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.
    Type: Grant
    Filed: September 5, 2002
    Date of Patent: February 14, 2006
    Assignee: Sabinsa Corporation
    Inventors: Muhammed Majeed, Kalyanam Nagabhushanam, Keshava Rao Rapole, Ravikrishna Chebolu