Patents Represented by Attorney Arthur T. Whale

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  • Halogenating reagents
    Patent number: 4230644
    Abstract: Novel halogenating agents are derived from triaryl phosphites and chlorine or bromine. They are useful in converting 7-acylamino-3-hydroxy-3-cephem compounds to 7-acylamino-3-halo-3-cephems and the corresponding C-7 imino halide cephem derivatives.
    Type: Grant
    Filed: February 1, 1979
    Date of Patent: October 28, 1980
    Assignee: Eli Lilly and Company
    Inventors: Lowell D. Hatfield, Larry C. Blaszczak, Jack W. Fisher