CEPHALOSPORIN DERIVATIVES

• Format: Patent
• Language: English
• Published: 20.03.1974
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; DERIVATIVES THEREOF; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HETEROCYCLIC COMPOUNDS; METALLURGY; NUCLEIC ACIDS; NUCLEOSIDES; NUCLEOTIDES; ORGANIC CHEMISTRY; SUGARS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

1348737 Cephalosporins TAKEDA YAKUHIN KOGYO KK 31 May 1972 [31 May 1971] 25417/72 Addition to 1304647 Heading C2A Novel cephalosporin compounds having the Formula (I) and salts and esters thereof, wherein R1 is an acyl group and each of R2 and R3, which may be the same or different, is a hydrogen at...