Patent · US Expired

Amino-spiro[oxa(or thia)cycloalkane-penam]-carboxylic

US4137236A · kind A · utility

3Cited by

4References

6Claims

0Family size

Assignee

UCB, Inc. · BE

Inventors

Ludovic Rodriguez · Brussels, BE
Jacques Leclerca · Braine-l'Alleud, BE
Pierre Ykman · Brussels, BE
Eric Cossement · Brussels, BE

Key dates

Filing date	Jan 16, 1978
Grant date	Jan 30, 1979
Priority date	—
Expiry date	Jan 16, 1998

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D513/10
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Amino-spiro[oxa(or thia)cycloalkane-penam]-carboxylic acid, a salt or an ester thereof, of the formula ##STR1## wherein Z is a hydrogen or an alkali metal atom, or a group protecting the carboxylic function, X is a sulfur or oxygen atom, n is 1 or 2, m is 1 or 2, and process of preparing the same. These compounds are useful as intermediates in the synthesis of a new group of antibiotics having properties similar to penicillins, besides own antibiotic activity with a broad antibacterial spectrum.

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