Document Type and Number:
Japanese Patent JPH0310633
Kind Code:
B2
Abstract:
An improved process for making 6,6-diiodopenicillanic acid, an intermediate for preparation of 6-beta-iodopenicillanic acid, a beta-lactamase inhibitor, which comprises diazotizing 6-beta-aminopenicillanic acid in the presence of iodine, followed by washing the product of said process with an aqueous solution of an alkali metal iodide.
Inventors:
ROBAATO JEI SHISUKO
Application Number:
JP15336182A
Publication Date:
February 14, 1991
Filing Date:
September 02, 1982
Export Citation:
Assignee:
PFIZER
International Classes:
C07D499/87; C07D499/00; C07D499/04; C07D499/86; C07D499/897