PENEM DERIVATIVES, PRODUCTION AND USE THEREOF

• Main Authors: ISHIGURO, MASAJI, IWATA, HIROMITSU, TANAKA, RIE
• Format: Patent
• Language: English
• Published: 30.06.1995
• Edition: 6
• Subjects: CHEMISTRY; HETEROCYCLIC COMPOUNDS; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; METALLURGY; ORGANIC CHEMISTRY; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS

Novel penem compounds of the formula, wherein R is hydrogen or allyl, and A is an aliphatic 5- or 6- membered heterocyclic group having one or two oxygens in the ring and their pharmaceutically acceptable salts are produced from the compounds of the formula, wherein A is as defined above and R and R...