Cephalosporin synthesis

US5856474A · 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: Oct 23, 1996
• Grant date: Jan 5, 1999
• Expiry date: Oct 23, 2016

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 ##STR1## wherein R.sub.1 signifies hydrogen or a silyl protecting group, processes for their production and their use as intermediate products.