Patent · US Expired

Process for the preparation of penem compounds

US5198544A · kind A · utility

0Cited by

2References

3Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Karl-Heinz Budt · Kelkheim, DE
Walter Durokheimer · Hattersheim, DE
Gerd Fischer · Limburg, DE
Rolf Horlein · Frankfurt am Main, DE
Reiner Kirrstetter · Kelkheim, DE
Rudolf Lattrell · Königstein, DE

Key dates

Filing date	Feb 25, 1991
Grant date	Mar 30, 1993
Priority date	—
Expiry date	Feb 25, 2011

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D499/88
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Compound I ##STR1## is obtained by reaction of compound II with compound III

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.