Cephalosporin compounds

US6093813A · kind A · utility

Assignee

• Biochemie Gesellschaft m.b.H · AT

Inventors

• Gerd Ascher · Kundl, AT
• Johannes Ludescher · Feldbach, AT
• Hubert Sturm · Innsbruck, AT
• Josef Wieser · Kufstein, AT

Key dates

• Filing date: Sep 30, 1998
• Grant date: Jul 25, 2000
• Expiry date: Sep 30, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/55
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Cephalosporin derivatives of formula II ##STR1## wherein R.sup.a denotes hydrogen or a silyl group; R.sup.b denotes a group of formula --OR.sup.e, wherein R.sup.e denotes hydrogen or alkyl; and R.sup.c and R.sup.d together denote a bond; in free form or in salt form.