Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujisawa Pharmaceutical Co Ltd
Original Assignee
Fujisawa Pharmaceutical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP50015191Aexternal-prioritypatent/JPS5191284A/ja
Priority claimed from JP50037647Aexternal-prioritypatent/JPS51113891A/ja
Priority claimed from JP50048833Aexternal-prioritypatent/JPS51125398A/ja
Priority claimed from JP50078294Aexternal-prioritypatent/JPS523092A/ja
Application filed by Fujisawa Pharmaceutical Co LtdfiledCriticalFujisawa Pharmaceutical Co Ltd
Publication of ES444902A1publicationCriticalpatent/ES444902A1/es
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
Cephalosporin Compounds
(AREA)
ES444902A1975-02-041976-02-04Procedimiento para preparar un acido 7-(acetamido &, l disustituido)-3-sustituido-3-ceben-4-carboxilico.
ExpiredES444902A1
(es)
Un procedimiento para la preparacion de un derivado de 7- (alfa hidroxi-alfa-fenil) acetamido - 3 - (1 - metil - 1h - tetrazol - 5 - iltiometil) cefalosporina.
Un procedimiento para la preparacion de compuestos semisin-teticos utilizados en la produccion de cefalosporinas, peni-cilinas y compuestos antibioticos relacionados de beta-lac- tama.