Antibiotic derivatives, their production and use
US4897489A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 1987 |
| Grant date | Jan 30, 1990 |
| Priority date | — |
| Expiry date | May 21, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K38/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The compounds of the formula: ##STR1## wherein R.sup.1 is hydrogen, amino, isonitrile or an organic residue bonded through nitrogen; R.sup.2 is carboxy or a group derivable therefrom; X is hydrogen, methoxy, formylamino, alkyl which may be substituted, alkylthio in which the sulfur atom may be oxidized or azido, or forms a double bond together with the adjacent carbon atom; provided that when R.sup.1 is acetylamino or amino and X is hydrogen, R.sup.2 is not para-nitrobenzyloxycarbonyl or benzhydryloxycarbonyl, or a pharmaceutically acceptable salt thereof, exhibit excellent antimicrobial activity, and are utilized as antimicrobial agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.