Patent · US Expired

Cephem compounds

US4918068A · kind A · utility

1Cited by
2References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 26, 1987
Grant dateApr 17, 1990
Priority date
Expiry dateFeb 26, 2007

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61P31/04
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

There are provided new cephem compounds (synisomers) represented by the following general formula (I): ##STR1## wherein R.sup.1 means a lower group, R.sup.2 denotes an ester-forming group of the carboxyl group, and the 4-methylthiazolyl group and the cephem moiety are cis to each other relative to the carbon-carbon double bond of the substituted vinyl group in the side chain at the 3-position of the cephem nucleus. The cephem compounds exhibit strong antibacterial activities not only against resistant strains of bacteria and gram-negative bacteria but also against gram-positive bacteria and moreover have very low toxicity.

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