Acylamino-cephem-carboxylic acids containing an amidino or guanidino group in the molecule

US4016159A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Dieter Bormann · Kelkheim, DE
• Bernd Knabe
• Elmar Schrinner · Wiesbaden, DE
• Manfred Worm · Wiesbaden, DE

Key dates

• Filing date: Nov 27, 1974
• Grant date: Apr 5, 1977
• Expiry date: Nov 27, 1994

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/55
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Acylamino-cephem-carboxylic acids of the formula I ##STR1## in which R.sup.1, R.sup.2 and R.sup.3 represent hydrogen or alkyl, R.sup.1 and R.sup.2 or R.sup.2 and R.sup.3 together may form an alkylene radical which may be substituted, X represents a single bond or NH, A represents a phenylene or thienylene radical which may be substituted, Y represents a single bond or oxygen and Z represents a 5- or 6-membered ring which may be substituted and which may be bound to an anellated ring system, and their physiologically tolerated salts and esters, a process for preparing these compounds and preparations containing them.