Document Type and Number:
Japanese Patent JPH034078
Kind Code:
B2
Abstract:
Preparation of penicillanic acid 1,1-dioxide-and derivatives thereof by debromination of 6-alpha-bromo- and/or 6,6-dibromopenicillanic acid 1,1-dioxides. The debromination is effected in a water-containing medium by reduction with zinc in association with an acid having a pKa-value measured in water less than 3.5.
Inventors:
PEETORU UORUFUGANGU HENIGERU
YOHANESU KARERU FUAN DERU DORIFUTO
YADEITSUSHU CHANDERU KAPYUURU
HERUMAN PIITERU FUASERU
YOHANESU KARERU FUAN DERU DORIFUTO
YADEITSUSHU CHANDERU KAPYUURU
HERUMAN PIITERU FUASERU
Application Number:
JP6907683A
Publication Date:
January 22, 1991
Filing Date:
April 19, 1983
Export Citation:
Assignee:
GIST BROCADES NV
International Classes:
C07D499/87; A61K31/43; A61P31/04; C07D499/00; C07D499/04; C07D499/10; C07D499/21; C07D499/86; C07D499/897; C12N9/99