Patent · US Expired

Novel penicillins and their preparation

US4031230A · kind A · utility

16Cited by

7References

100Claims

0Family size

Assignee

Merck Patent GmbH · DE

Inventors

Rudolf Gottschlich · Reinheim, DE
Werner Rogalski
Rolf Bergmann
Rosmarie Steinigeweg
Helmut Wahlig · Darmstadt, DE

Key dates

Filing date	Oct 22, 1975
Grant date	Jun 21, 1977
Priority date	—
Expiry date	Oct 22, 1995

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D499/00
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Penicillins of the formula ##STR1## wherein X is O or S; Y is H or alkyl; Z is ##STR2## R.sub.1 is H or OH; and R.sub.2 and R.sub.3 each are H or wherein X is O or S; Y is H or alkyl; R.sub.2 and R.sub.3 each are H or taken together with the carbons to which they are attached form an aromatic six-membered carbocyclic or N-heterocyclic ring and alkyl, alkoxy, dialkylamino or halogen derivatives thereof are active against Gram-positive and Gram-negative bacteria.

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