Patent · US Expired

Hydrazono penicillin derivatives

US4231927A · kind A · utility

3Cited by

1References

7Claims

0Family size

Assignee

C R A F Sud · IT

Inventors

Riccardo Monguzzi · Dorio, IT
Giorgio Pifferi · Milano, IT
Mario Pinza · Corsico, IT
Giampietro Broccali · Milano, IT

Key dates

Filing date	Jun 7, 1978
Grant date	Nov 4, 1980
Priority date	—
Expiry date	Jun 7, 1998

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C251/72
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Hydrazono penicillin derivatives of the formula ##STR1## wherein R represents phenyl optionally substituted, 2- or 3- thienyl optionally substituted, or 2- or 3-furyl optionally substituted, R.sub.1 represents hydrogen, alkyl containing from 1 to 4 carbon atoms, or phenyl, and R.sub.2 represents hydrogen, pivaloyloxymethyl, or 1-(ethoxycarbonyloxy)ethyl radical. The compounds have antibacterial activity against gram-negative and gram-positive microorganisms. Methods of preparation are also disclosed.

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