Patents Represented by Attorney Lawrence S. Popo

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  • Process for producing 13-cis retinoic acid
    Patent number: 6124485
    Abstract: The process of the present invention relates to a process for producing 1 3-cis retinoic acid. The process of the present invention involves reacting a Wittig salt in a solvent with a butenolide in the presence of a weak base and a Lewis acid.
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: September 26, 2000
    Assignee: Abbott Laboratories
    Inventors: Xiu C. Wang, Ashok V. Bhatia, Azad Hossain, Timothy B. Towne