Patents Represented by Law Firm Birch, Stewart, Koilasch & Birch
  • Stable hydrate of penicillin derivative
    Patent number: 4866170
    Abstract: A stable trihydrate of (2S, 5R, 6R)-6-{(2R)-2-[(2R)-2-amino-3-(N-methylcarbamoyl)propionamido]-2-(p-hydrox yphenyl)acetamido}-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-c arboxylic acid and process for preparing the same are disclosed.
    Type: Grant
    Filed: September 18, 1987
    Date of Patent: September 12, 1989
    Assignee: Tanabe Seiyaku Co., Ltd.
    Inventors: Susumu Ohshiro, Masaru Senuma, Mitsuyoshi Wagatsuma