Classifications

• • C—CHEMISTRY; METALLURGY
  • C07—ORGANIC CHEMISTRY
  • C07D—HETEROCYCLIC COMPOUNDS
  • C07D501/00—Heterocyclic compounds containing 5-thia-1-azabicyclo [4.2.0] octane ring systems, i.e. compounds containing a ring system of the formula:, e.g. cephalosporins; Such ring systems being further condensed, e.g. 2,3-condensed with an oxygen-, nitrogen- or sulfur-containing hetero ring
  • C07D501/02—Preparation
  • C07D501/04—Preparation from compounds already containing the ring or condensed ring systems, e.g. by dehydrogenation of the ring, by introduction, elimination or modification of substituents
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
  • Y02P20/00—Technologies relating to chemical industry
  • Y02P20/50—Improvements relating to the production of bulk chemicals
  • Y02P20/55—Design of synthesis routes, e.g. reducing the use of auxiliary or protecting groups

Landscapes

• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Cephalosporin Compounds (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=22106384

Family Applications (1)

Country Status (18)

• 1971
  • 1971-08-16 ZA ZA715456A patent/ZA715456B/xx unknown
  • 1971-08-29 IL IL37607A patent/IL37607A/xx unknown
  • 1971-09-01 CA CA121,883A patent/CA960661A/en not_active Expired
  • 1971-09-03 IE IE1127/71A patent/IE35623B1/xx unknown
  • 1971-09-13 AU AU33402/71A patent/AU456489B2/en not_active Expired
  • 1971-09-13 BE BE772497A patent/BE772497A/xx unknown
  • 1971-09-13 SU SU1697246A patent/SU422161A3/ru active
  • 1971-09-13 GB GB4261471A patent/GB1312175A/en not_active Expired
  • 1971-09-13 HU HUEI392A patent/HU164741B/hu unknown
  • 1971-09-13 ES ES395049A patent/ES395049A1/es not_active Expired
  • 1971-09-13 JP JP46071157A patent/JPS5248995B1/ja active Pending
  • 1971-09-13 PL PL1971150483A patent/PL81718B1/pl unknown
  • 1971-09-14 DE DE19712145946 patent/DE2145946A1/de active Pending
  • 1971-09-14 AT AT797271A patent/AT309682B/de active
  • 1971-09-14 CH CH1342071A patent/CH564024A5/xx not_active IP Right Cessation
  • 1971-09-14 NL NL7112646A patent/NL7112646A/xx unknown
  • 1971-09-14 CS CS716548A patent/CS187311B2/cs unknown
  • 1971-09-14 FR FR7133088A patent/FR2107648A5/fr not_active Expired

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